

Truk is best known for its world-class wreck diving and with over 60 wrecks, from supply vessels (Maru) to planes and a submarine, tightly packed into a coral reef lagoon. It is easy to appreciate why divers travel to this area time and time again. During WWII, the Japanese fleet used Truk as one of their main staging points for attacks on the allied forces but in 1944 the American led “Operation Hailstone” surprised the fleet resulting in the plethora of dive sites which we can see there today.
Many historical artifacts such as medicine bottles and newspapers along with articles of war, which include aircraft wings for the Zero Fighter planes, tanks, guns, gas masks and ammunition, can still be found at many of the sites., whilst the wrecks themselves are encrusted with corals, you can still clearly see telegraphs, steering columns and mounted guns. There is also the opportunity to explore engine rooms and holds. Surrounded by a coral reef, there are many
excellent coral pinnacles and deep channels with schooling pelagics too!
Experience the Wreck Diving Capital of the World with M/Y Truk Master and dive deeper into history!
Built of steel, M/Y Truk Master is the newest liveaboard yacht to ply the waters of this lagoon, welcoming aboard 16 guests for 7 or 10 night Truk Lagoon dive safaris, whilst on the Bikini itineraries availability is limited as M/Y Truk Master carries 12 divers only. Our 4 decks provide ample space for relaxation, dive equipment and camera preparation, whilst our experienced crew ensures you receive only the highest quality service on your diving vacation.
Bikini Atoll is part of the Republic of the Marshall Islands, which covers nearly 1 million square miles of idyllic emerald-green coral atolls, surrounded by the crystal-blue waters of the Pacific. A one of a kind diving paradise, as it features not only beautiful reefs, corals and wonderful marine life. Above all, it is the final resting place for some of the most significant warships in history. Bikini Lagoon is the first UNESCO World Heritage site for the Marshall archipelago and is undisputedly ranked first on any serious wreck divers’ bucket-list. This is well justified; nowhere else on earth will you be able to dive such a unique collection of historic battleships, cruisers, as well as the world famous USS Saratoga aircraft carrier with its 270m (888ft) flight deck.
The following is a sample itinerary of dive sites and wrecks we may visit during your liveaboard safari with Master Liveaboards in Bikini Atoll. We wish to show you the very best diving possible but a number of factors can determine where we visit. Weather, tides, currents and other factors play a part in the Cruise Director’s decision of which route the yacht takes. Whilst we attempt to ensure the number of dives we have scheduled is fulfilled, bad weather can hinder the yacht’s ability to reach a specified dive site in good time. The safety of all on board is paramount and we always do our best in offering diving at alternate locations should we be unable to visit those sites listed below.
As most wrecks at Bikini Atoll are beyond recreational depth limits, this itinerary is suitable only for technical divers with previous wreck experience.
Your Cruise Director will schedule 2 dives per day. The diving day has a typical schedule as follows:
Breakfast followed by a briefing & Dive 1
Lunch, relaxation followed by briefing & Dive 2
Snack, relaxation,
Dinner
We keep a standard minimal surface interval of 4 hours between dives in Bikini, as a safety measure.
Explosive history
In 1946, following the end of World War II, the United States gathered together a “mock” naval fleet in order to test the effects of atomic bomb blasts on a large naval fleet. They named it Operation Crossroads and designated Bikini Atoll to be one of the sites for the explosive tests, with the local inhabitants displaced to another atoll. More Operations followed suit; from land, on the reef, on the sea, from the air and underwater. Between 1946 and 1958, the United States tested a grand total of 67 nuclear weapons on the Marshall Islands, of which ‘Castle Bravo’ on Bikini Lagoon in 1954 is the best-known. This 15-megaton TNT hydrogen atomic bomb was a thousand times more powerful than the bomb dropped on Hiroshima. It left a crater in the lagoon of 2 kilometres wide and 76 metres deep. Bikini Atoll was opened for diving in 1996, allowing divers to experience some of the most historic and unparalleled wreck diving in the world.
Detailed itinerary information:
Bikini 10 & 11 night itinerary
Bikini 13 & 14 night itinerary
On a typical day we offer up to 4 day dives, however the 4th day dive may be substituted for a night dive when the boat is anchored within the lagoon. A 7 night itinerary provides for between 18-20 dives, whilst during our 10 night itineraries, up to 30 dives will be possible. The diving day is scheduled as follows:
Light Breakfast followed by a briefing and Dive 1
Full Breakfast, relaxation period, briefing and Dive 2
Lunch, relaxation period, briefing and Dive 3
Snack relaxation period, briefing and Dive 4, where possible
Dinner
Many of the wrecks lie within recreational diving depths, however M/Y Truk Master also offers Tec diving facilities for those wishing to delve deeper in the wrecks and take a closer look at history.
Dive the superb wrecks of the Japanese Imperial Navy WWII fleet that are scattered around Truk Lagoon in a variety of depths. Our 7-night or 10-night itineraries allow you to explore not only many of the famous wrecks but to experience some superb reef diving also. There are numerous channels that cut through the reef which serve as hunting grounds for reef sharks and schooling pelagics which all add to the wonder of diving Truk.
Departing from Weno, our 7-night and 10-night liveaboard dive trips on Truk Master take you directly to the main concentration of wrecks located within the bay. Truk Master will moor over the deeper wrecks allowing an easy descent down the line directly on to the wreck. Technical divers will benefit from the support of the “mother ship”, whilst our 2 skiffs are able to shuttle less experienced divers to the shallower sites and offer reef diving as an alternative to the wrecks.
Many of the wrecks are “Maru” or merchant vessels that had been left at anchor, some had been fortified with anti-aircraft weapons and many carried important army supplies including Zero Fighter aircraft parts, tanks, torpedo shells, trucks and road supplies. Bottles, cooking utensils, items from everyday life and personal artifacts can be found in several of the wrecks, serving as a reminder to the visiting divers of those who lost their lives during the battle. The more gruesome reminders of the conflict, such as human skulls, have since been removed and may now only be seldom seen in the deeper reaches of the wrecks.
Detailed itinerary information:
Truk Lagoon itinerary
‘Astral Star’, a long range cruiser built by Codecasa and designed by Camper Nicholson, has joined the Master Liveaboards brand and has undergone a full refit prior to her re-launch as ‘M/Y Truk Master’. The refit was overseen by our own experienced yacht building team.
Guests may choose between lower, middle and upper deck cabins, each of which are en-suite and have individual air conditioning units. Communal relaxation areas are split between the middle and upper decks comprising of a spacious indoor dining area, camera set up station and guest storage drawers, lounge bar with comfortable bench seating and plasma screen, shaded outdoor seating area and a sundeck.
On Bikini Atoll itineraries, occupancy on M/Y Truk Master is limited to a maximum of 12 passengers due to space limitations for equipment storage. Spaces will only be available in premium cabins located on the lower and mid decks. Cabins 1 and 8 are not available for use by guests’ use on Bikini Atoll trips.
Dive equipment is set up and stored on the rear of the middle deck. All guests are allocated an individual set up station, with under bench storage for masks, fins and other personal items. A central camera table can be used to store prepared equipment ahead of the dive, with dedicated rinse tanks provided. Divers can take advantage of the on deck shower hoses or use the starboard side deck head to rinse off between dives. The Captain welcomes you to join him at the fly-bridge, from where you can soak up the stunning views of the islands of Truk Lagoon.
Technical divers will find on board all the latest technical diving facilities and equipment to fully enable them to explore those ultimate wrecks in Truk and Bikini Atoll.
Master Liveaboards offers a range of services to make your stay on board even more enjoyable. Rental equipment, Marine Park & Port fees, and courses can now be pre-booked and pre-paid at the time of booking. For our technical diver guests, please send us your gas and equipment requests as early as possible.
The following services are available for an additional fee:
– Alcoholic beverages (prices vary)
– Master Liveaboards merchandise (prices vary)
– Satellite internet
On arrival… No visa is required for entering the Marshall Islands for US citizens, EU countries, Canada and most other Western countries. Nevertheless, we recommend our guests to check for any updates and changes with their nearest Marshall Islands embassy or consulate. Please make sure that your passport is valid for at least 6 months beyond the period you intend to stay in the Marshall Islands. If you are traveling with medication, please ensure to bring your physician’s prescription with you. Please ensure you have a printed copy of the Master Liveaboards Sponsor Letter on hand when arriving in Kwajalein. Important information on arrival procedures in Kwajalein can be found here.
Staying there… The local currency in the Marshall Islands is the US Dollar (US$). Major businesses will accept credit cards; traveller’s cheques are accepted by banks and larger businesses. The number of ATMs on the islands is very limited, so we recommend bringing a sufficient amount of USD in cash, preferably in smaller denominations.
Climate and weather… The climate of the Marshall Islands is a tropical climate, with temperatures averaging between 27 and 29C (80-84F) all year round, with some trade winds and a light cooling down in the evening. Generally, the northern islands tend not to receive as much rainfall as the southern islands.
Time zone… The local time in the Marshall Islands is 12 hours ahead of UTC (GMT).
Health… In the Marshall Islands, medical care is very basic with the ‘best’ medical facility in Majuro. Any form of treatment other than basic requires evacuation. Normal precautions should be taken with food and it is advisable to drink bottled water only. No vaccinations are required before entering the Marshall Islands, however; we recommend consulting your doctor for updated information well before departure.
Radioactive radiation to which divers are exposed from the shipwrecks is negligible, since water acts as an excellent insulator. Divers are safe, as long as they do not try to grab souvenirs from the wrecks. Pilfering is forbidden and hazardous.
Travel Advisories… We recommend that you book your international flight to and from Kwajalein Airport, which is served by United Airlines 3 times per week from Hawaii and takes around 7 hours. (The HNL – MAJ – KWA flight leaves on Monday, Wednesday, Friday, so generally you will have to leave the day before that (Sunday, Tuesday, Thursday) from Los Angeles (LAX) or San Francisco (SFO) to make the connection.) Ideally, you arrive in Honolulu one day in advance of your flight to Kwajalein as this flight departs early in the morning. Keep in mind you will be crossing the date line traveling to Kwajalein Atoll. There is also a flight from Guam arriving at Kwajalein, however; we have scheduled our itinerary around the Honolulu flight.
Detailed trip information:
Bikini Trip Information Kwajalein – Kwajalein
Bikini Trip Information Kwajalein – Majuro or v.v.
Travel Advisories… Most flights to Chuuk International Airport (TKK) require transit via Guam or Hawaii, which are part of the United States. All non-US citizens must obtain a US visa or Electronic System of Travel Authorization (ESTA) prior to travel. Citizens of 37 countries, including most European nations, Australia, New Zealand and Japan are eligible for the ESTA and should apply online at least 72 hours prior to travel. An ESTA is valid for 2 years and allows for multiple entries into US territories within that period. Guests without visa or ESTA may be denied boarding.
On arrival… Passport holders of most western countries may obtain a visa on arrival which allows stays up to 30 days, meanwhile travelers from the United States may obtain a tourist visa for up to 1 year stay. Please make sure that your passport has validity of at least 4 months upon arrival into Chuuk and you are also required to show a confirmed ticket to leave Chuuk, or any country you are transiting through, prior to boarding your flight. For more information please visit the Chuuk Visitor’s Bureau.
Staying there… The local currency is the US Dollar (US$). The majority of established hotels, shops and restaurants accept major credit cards. However, smaller establishments are likely to only accept cash payments. ATMs are available however guests are advised to exchange money prior to arrival and to ensure you have small denominations on hand. We work with a number of hotels and resorts. Should you wish to extend your stay in Truk, our team will be pleased to assist you.
Climate and weather… Truk, as part of the Federated States of Micronesia (FSM) is a tropical country and the climate is fairly even all year round. The average high is 30°C (86°F) whilst the average low is 25°C (77°F) throughout the year. The more humid climate is during in the summer months (Jun-Sept) whilst trade winds come mainly from the northeast between December and June.
Time zone… The local time is 10 hours ahead of UTC (GMT).
Health… Health care is readily available in the FSM and a major hospital is located within each of the states. There are no tropical diseases, however, to prevent stomach ailments we recommend travelers follow normal precautions with food and drink bottled water only. Please consult your doctor or nearest health care professional for up-to-date medical travel information well before departure. Visitors arriving from countries which are affected by Cholera or Yellow Fever must show proof of immunization upon arrival.
Detailed trip information can be found here.
Whilst we have much information on our website, you may find you have additional questions about our dive liveaboard, the diving in Bikini or general location information. Below are the answers to some commonly asked questions, should you have other questions or queries, please contact our reservations team who will be pleased to assist you.
What dive experience level is recommended for Bikini Liveaboard trips?
Diving on the Bikini wrecks is respectfully recommended for technical divers only with a minimum of PADI Tec 50 level or equivalent, with wreck experience, as the average depth of the wrecks is around 50 meters (150 ft). To get the most out of your dives in Bikini Atoll, highly recommended are:
Are there requirements and recommendations for dive equipment in Bikini Atoll?
Yes, to dive in Bikini Atoll with Master Liveaboards, you will need the following items:
For planning purposes, please send us your gas and equipment requests as early as possible, preferably upon booking.
Recommended Equipment
Please inspect and test all your dive equipment before coming to Bikini. If you have just had your equipment serviced we still recommend you test it thoroughly before coming to Bikini. There are no dive centers or facilities for repairing equipment in Kwajalein or Bikini.
Can I rent scuba equipment whilst aboard? Yes, please refer to the price list of rental gear here. Please note that in Bikini there are no wetsuits for rent! Rental equipment and Marine Park & Port Fees can now be pre-booked and pre-paid at the time of booking. We offer: Manifold Twin-Tanks, 80/40 cuft deco stage, oxygen, helium for rebreathers, along with sorb, which we will also need to know about in advance. Please make your inquiry during your reservation.
Must I pay Marine Park fees? Yes, the applicable fees will be added to your final invoice prior to departure or can be paid on board.
The full amount for Bikini Atoll are paid directly to the Bikini Council and can not be fully or partially reimbursed if a trip is cut short for any reason.
Does Truk Master have internet on board? Yes, we have Wifi high speed satellite internet available on board and offer interesting pre-booking specials.
I am travelling alone. Must I pay a single supplement or may I share a cabin? For solo travelers we offer 2 options. You may choose to have a cabin for yourself for which we charge a single supplement of 80% of the cabin cost. However if you wish to share a cabin, we will place you in a twin cabin with a member of the same sex. We do not mix cabins without express permission of both guests.
How far is the departure point from Kwajalein Airport? From the airport you are shuttled to a ferry that brings you to Ebeye Island in 20 minutes. From there you will embark the Truk Master.
Must I spend an additional night in Hawaii on either side of my liveaboard trip? We recommend guests spend an additional night on either side of their trip to ensure they are well rested for the diving ahead. Our itineraries are based on the United Airlines flight from Honolulu in Hawaii.
Do I need dive insurance? Yes. All divers travelling aboard the Truk Master must ensure they are fully covered for all diving accident and emergency situations, including coverage for air evacuation. We also strongly advise our guests to obtain comprehensive travel insurance to cover against unforeseeable delays and potential missed flight connections. A combination dive and travel insurance, which includes the option for additional liveaboard cover, may be booked through Master Liveaboards or online through DiveAssure.
What should I bring with me? Liveaboard lifestyle is relaxed and informal. Essential items include T-shirts, shorts, swim wear, long trousers / sarong / long skirt, sturdy footwear for island visits and a warm jacket or pullover for cooler nights. Shower gel is provided on board, however guests should bring any hair care or personal beauty products they require, along with sunscreen. We have a fully stocked first aid kit on board, but guests should bring any personal prescription medications with them (with doctor’s note).
Whilst we have much information on our website you may find you have additional questions about our dive liveaboard, the diving in Truk Lagoon or general location information. Below are the answers to some commonly asked questions, should you have other questions or queries, please contact our reservations team who will be pleased to assist you.
Can I dive with Nitrox? Yes, all Nitrox qualified divers may opt to dive with Nitrox for an additional charge, please refer to the on board extras below for current pricing.
I am not Nitrox certified. May I take a Nitrox course whilst on board? We do not currently offer any dive training courses aboard the Truk Master. For those wishing to take a Nitrox certification course we recommend you contact your local dive centre or consider PADI e-learning.
Does Truk Master facilitate technical diving? Yes, we cater for both recreational and technical divers alike. Our technical diving guests are kindly requested to inform us about their gas and equipment requests as early as possible, preferably upon booking.
Must I pay National Park fees? There are no national park fees as such but there is a port, permit and tax fee that depends on the length of your cruise. The applicable amount will be added to your final invoice prior to departure, or can be paid on board.
What should I bring with me? Liveaboard lifestyle is relaxed and informal. Essential items include T-shirts, shorts, swim wear, long trousers / sarong/ long skirt, sturdy footwear for island visits and a warm jacket or pullover for cooler nights. Shower gel is provided on board, however guests should bring any hair care or personal beauty products they require, along with sunscreen. We have a fully stocked first aid kit on board, but guests should bring any personal prescription medications with them (with doctor’s note).
Does the Truk Master have internet on board? Yes, we have Wifi high speed satellite internet available on board and offer interesting pre-booking specials.
What dive experience level is recommended for Truk Liveaboard trips? There are more than 60 wrecks in Truk Lagoon, however some of the signature sites lay beyond entry level depth limitations (18m/60ft). Advanced level is recommended and for some wrecks deep diver (40m+) or tec-diving qualifications may be required.
Can I rent scuba equipment whilst aboard? Yes. Our standard cylinder are 80 cuft aluminium. If you would like to get a 100cuft aluminium cylinder (charges apply) then please let us know in advance. We also offer rental on various tanks for deco and rebreathers, along with sorb, which we will also need to know about in advance. All standard recreational diving equipment is also available for rent, again charges apply. Please make your inquiry during your reservation.
I am travelling alone. Must I pay a single supplement or may I share a cabin? For solo travelers we offer 2 options. You may choose to have a cabin for yourself for which we charge a single supplement of 80% of the cabin cost. However, if you wish to share a cabin, we will place you in a twin cabin with a member of the same sex. We do not mix cabins without express permission of both guests.
How far is the departure point from Weno Airport? The approximate transfer time from between Weno airport and the Truk Master is 1 hour. Roads in Chuuk are not of western standard and delays are to be expected.
Must I spend an additional night in Truk either side of my liveaboard trip? We recommend guests spend an additional night either side of their trip to ensure they are well rested for the diving ahead. All international flights arrive into Weno Island. We do advise allowing plenty of time for transfers, check-in and potential flight delays.
Do I need dive insurance? Yes. All divers travelling aboard the Truk Master must ensure they are fully covered for all diving accident and emergency situations, including coverage for air evacuation. We also strongly advise our guests to obtain comprehensive travel insurance to cover against unforeseeable delays and potential missed flight connections. A combination dive and travel insurance, which includes the option for additional liveaboard cover, may be booked through Master Liveaboards or online through DiveAssure.
All crew went out of their way to make the trip memorable. Great big thank you to all crew members on this trip. Martin was an amazing captain and all crew members made us feel welcome. I would definitely recommend the Truk Master to friends and family and look forward to being able to do another trip with you.
Ferg was my guide and was extremely efficient and concerned about safety and making sure everyone didn't miss out on any highlights or artifacts.
Craig was also very good and helpful in all areas.
Martins briefings were first class. His knowledge of the wrecks and history of the area is second to none.
The crew were always friendly courteous and nothing was too much trouble .
It's been a trip of a lifetime .
The history and the WW2 wrecks made it very interesting and incredible to share in it
I have had an amazing week and am grateful to all the crew for making such a great experience. I have learnt a huge amount and have loved it.
Trip of a lifetime! Thank you
They anticipate needs and proactively make suggestions.
Fantastic experience. All logistics were taken care of easily and efficiently
The crew was professional but fun, with the right balance of getting the job done yet making us feel like family. I enjoyed my experience and will consider Master Liveaboards in the future
Trip of a lifetime.
They were above and beyond all expectations.
This was the best dive experience of my career
Master Liveaboards was founded to bring divers to the best dive locations and provide an unsurpassed liveaboard diving experience. Dive the Galapagos, Truk Lagoon, Bikini Atoll, the Solomon Islands, the Red Sea, Maldives or the Bahamas with more superb diving destinations to follow…Read More