Frequently asked questions

Bikini Atoll & Truk Lagoon

Before Your Trip

While some batteries may be available to purchase on board, please bring extras if your personal dive equipment may require a unique size. Because of the remote locations in which our vessels operate, there is limited or no access to battery recycling facilities. To help us with responsible tourism we kindly request you bring home your own spent batteries to be recycled or disposed of properly. Alternatively, consider using rechargeable batteries as there are plenty of sockets to plug in a charger on board.

The wrecks of Bikini Atoll all lie at depths beyond recreational dive limits, with most starting around 50 meters. Required certification is TDI Extended Range or PADI Tec 50 or equivalent, with previous experience with wreck penetration. As most of the diving in Bikini Atoll will be extended range, there will be 2 technical dives offered most days. Each diver is responsible for planning their own dive with their dive buddy, with the assistance of the Cruise Director who is familiar with diving the wrecks of Bikini Atoll. For safety, there is a mandatory 4-hour surface interval between dives and an afternoon off mid-trip (optional land tour and beach BBQ will be offered instead).

Kindly read and sign the specific Bikini waiver. In order to technical dive, please sign the specific technical diving waiver.

Cylinders and Sofnolime are very limited and MUST be requested in advance using the Tech Diving Form. We appreciate if you can let us know your requirements well in advance as this destination is very remote and it is difficult to accommodate any requests without 3 months notice.

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.


The Marshall Islands are currently closed to prevent the spread of coronavirus.

• Visa Information
Transit via Guam and Hawaii: You will need to apply for an ESTA under the Visa Waiver Program or acquire a USA visa prior to travelling.
IMPORTANT: All travellers wishing to enter the US or its territories under the VWP need to hold a passport with an integrated chip (an ePassport).
•  A tourist/visitor visa valid for 30 days is issued on arrival for citizens of the EU, UK, Australia, New Zealand and Canada. Citizens of the United States do not require a visa. However, as entry requirements can change at any time, we recommend that guests check with their nearest Marshall Islands embassy or consulate at

• Passport Validity
• Your passport should be valid for a minimum period of 6 months beyond the period you intend to stay in the Marshall Islands.

• Airport Taxes
All passengers travelling out of the Marshall Islands are charged a $20 USD departure tax to be paid in cash only. 

• We advise all guests to ensure that their vaccinations are up to date. Please make sure you use insect repellent and cover exposed skin to prevent any insect-borne diseases. If you are travelling with medication, please bring your physicians prescription with you.
• Measles immunisation
• The Republic of the Marshall Islands requires travellers born in or after 1957 to show proof of up-to-date measles / MMR vaccination in the form of an official measles immunization card bearing the signature and stamp of a licensed health care provider. Documented laboratory confirmation of immunity or history of measles disease on an immunization card is also considered acceptable to meet the requirement.

Our itinerary is built around the United Airlines flight from Honolulu, Hawaii that serves both Kwajalein and Majuro. Depending on your itinerary, we highly recommend you use this flight to get to and from Kwajalein and/or Majuro. Passengers travelling from the Marshall Islands are required to pay an airport departure tax, for Kwajalein this is currently 20US$. This varies from airport to airport and must be paid in US$.

 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.

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.

Please be aware that there are specific requirements for your arrival in Kwajalein for Bikini trips. For full details, please read the following documentation: Procedure for guests arrival in Kwajalein for Bikini.

Country Information


The Marshall Islands official languages are English and Marshallese, and Christianity is the predominant religion.

The local currency for the Marshall Islands (Bikini Atoll) is the US Dollar (USD). Some of the hotels, resorts, shops and restaurants may accept credit and debit cards, however the great majority may only deal in cash.The Marshall Islands have limited ATMs. Only the ATM at the Bank of Guam accepts international cards and it sometimes does not work. It is recommended to bring sufficient USD in cash, preferably in smaller denominations for convenience.
There is no ATM in Ebeye, but there are three in Majuro.

Cellular cover and internet are available around Majuro and Kwajelein Atolls. Once you leave these islands, the cover will be non-existent and communciations are covered mostly by shortwave radio.

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.

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.

There is no recompression chamber in the Marshall Islands availble to civilians. It would be necessary for guests to be evacuated via emergency air evacuatiobn for treatment (either onto Guam or Hawai)

During Your Trip

We are unable to offer any diving courses on the Bikini Atoll itineraries.

Yes, to dive in Bikini Atoll with Master Liveaboards, you will need the following items:

Two methods of buoyancy. This can be achieved by using a wing with a redundant bladder, drysuit or lift bag with a minimum of 20kg/45lb of positive lift.
Dive Computer – Multi-gas dive computer capable of switching between a minimum of 2 gasses ideally more.
Backup Computer or depth/bottom timer.
2 Surface Marker Buoys (SMB) – One red or orange SMB and one yellow SMB with a slate or wet notes attached for emergency use.
2 Reels or spools – One with a minimum 15m of line and one with a minimum of 60m of line.
Dive Slate or Wet Notes – Additional dive slate in addition to the slate used with the emergency surface marker buoy or a set of wet notes.
Minimum of two dive torches (primary and back-up) for guests planning on doing any wreck penetration.

Recommended Equipment

Backplate, harness and wing – A backplate, harness and wing capable of carrying manifolded twin aluminum 80cuft cylinders and one or two 40/80cuft aluminum stage cylinders. The wing should have a minimum of 20kg/45lb of positive lift.
Two DIN regulator sets one with long hose configured for twin cylinder operation.
One or two DIN stage regulators for use with up to 95% oxygen.
Protection – 3 or 5mm full length wet suit. Some divers also like to use a hood or helmet and gloves. Water temperature is between 27 – 29 degrees all year round with no thermoclines.
Spare Mask – Spare mask should be carried on all dives.

Our vessels are equipped for supporting the rebreather diver: there are booster pumps and stage tanks available on board. We can also supply Oxygen and CO2 absorbent (Molecular Products 797 Sofnolime). The scrubber is charged per full 4.5kg tub and O2 is charged per fill.
Pre-booking of any rebreather supplies is essential to guarantee availability for you. Please contact our reservations team to place your order and for up-to-date prices.
We DO NOT have M26 valves or adapters on board. Guests are advised to bring their own if they need them.
We cannot supply pre-pack sofnolime cartridges for rebreather units such as Poseidon.
Spare oxygen cells and specialist rebreather tools are not available so divers should bring their own.

Water temperatures in Bikini Atoll generally range between 28-30°C. Either 3 mm or 5 mm full length exposure suit are suitable. A 3 mm suit is appropriate for those who do not feel the cold as much or do not intend deep diving (30m+). A 5 mm suit helps wreck divers to prevent injury. Technical divers are advised to bring appropriate exposure protection for prolonged deco-stops.

Our vessel is fitted for universal power outlets that can fit most of your electrical equipment. The vessel runs on 110V/220V-60Hz

High speed Wi-Fi satellite internet is available to purchase. A satellite phone is available to use in case of an emergency. Most of the areas visited are out of range from normal phone cover.

The applicable fees will be added to your final invoice prior to departure or can be paid on board.
The full amount collected is paid directly to the Bikini Council and can not be fully or partially reimbursed if a trip is cut short for any reason.

You can pay all your onboard extras by card or in cash (USD, EUR & GBP).

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