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Marshall Islands’ Best Dive Sites

The Marshall Islands, a paradise for scuba divers, boasts some of the most pristine and diverse underwater environments in the world. From historic World War II shipwrecks to vibrant coral reefs, the dive sites here offer something for every level of diver. This article explores the best dive sites across the Marshall Islands, including the iconic Bikini Atoll and the bustling marine life at Rongelap Atoll.

Key Takeaways

  • Bikini Atoll is renowned for its World War II shipwrecks, making it a top destination for wreck diving enthusiasts.
  • Rongelap Atoll offers immaculate reefs and a rich variety of marine life, ideal for both novice and experienced divers.
  • Kwajalein Atoll is another must-visit site, known for its historical significance and underwater beauty.
  • Arno Atoll provides a more secluded diving experience with its untouched coral reefs and abundant marine species.
  • Majuro Atoll is perfect for divers looking to explore vibrant coral gardens and encounter diverse marine life.

Bikini Atoll

Bikini Atoll, one of the most remote atolls in the Marshall Islands, is a diver’s paradise located approximately 2,650 miles west of Hawaii. This atoll, composed of 23 coral islands surrounding a central lagoon, is renowned for its phenomenal wrecks and exceptional marine life. However, diving here is only suitable for those with technical certification due to the challenging conditions and depths involved.

The history of Bikini Atoll is both tumultuous and fascinating, having been the site of over two dozen nuclear tests conducted by the US Government in the 1940s and 1950s. This has left an indelible mark on the atoll, making it a unique and mysterious dive destination. The allure of exploring this UNESCO World Heritage Site is heightened by the challenge of reaching it, making it a pinnacle achievement for many serious wreck divers.

Practical Information

  • Best Time to Dive: The optimal time to dive at Bikini Atoll is during the dry season, from May to October, when the weather conditions are most favorable.
  • How to Get There: Access to Bikini Atoll is limited and typically requires booking through one of the two liveaboard operators, Truk Master or Indies Trader.
  • Diving Requirements: Divers must hold a TDI Advanced Nitrox & Decompression Procedures, PADI Tec 50, or an equivalent certification to dive here.


  • Marine Life & Environment: The atoll boasts pristine coral reefs and a diverse array of marine life, making it a haven for underwater photographers and marine enthusiasts.
  • Top Dive Spots: Some of the most notable dive sites include the wrecks of the USS Saratoga and the Japanese battleship Nagato, both of which offer a glimpse into the past and a thrilling dive experience.
  • Diving Conditions: With average dive depths of 164 feet (50m) and bottom times upwards of 100 minutes, the conditions at Bikini Atoll are challenging but rewarding for those with the necessary skills and experience.

Discover the wonders of Bikini Atoll diving in the South Pacific. Pristine coral reefs, unique marine life, and excellent dive sites await divers of all skill levels.

Rongelap Atoll

a woman scubas in the ocean with a camera

Rongelap Atoll is a hidden gem for divers seeking pristine underwater landscapes. The atoll has recently reopened to divers, offering spectacular dive sites with immaculate reefs and an astounding fish population. The coral here is vibrant, although some areas show signs of bleaching due to global warming. Divers can explore amazing drop-offs and reefs, making it a must-visit destination for underwater enthusiasts.

Diving Seasons

The best time to dive at Rongelap Atoll is from May to August. During this period, you can join liveaboard boats departing from the Kwajalein US military base or arrange trips through dive shops in Majuro.

Travel Tips

  • Ensure you have comprehensive travel and medical insurance before your trip.
  • Visibility is tremendous, providing clear views of the underwater wonders.

Explore scuba diving in Rongelap’s pristine waters and experience its diverse marine life up close.

Kwajalein Atoll

Kwajalein Atoll is a unique diving destination, primarily because it is a US Military base. Divers must present a confirmation letter from their liveaboard to gain entry. Army transport will then transfer visitors on a short 10-minute journey to the boat embarkation point on Ebeye Island. The atoll is renowned for its airplane graveyard, where over 100 airplanes rest in the sand, making it a fascinating site for underwater exploration.

Dive Logistics

  • Entry Requirements: Confirmation letter from liveaboard
  • Transport: Army transport to Ebeye Island
  • Dive Sites: Airplane graveyard with over 100 airplanes

Kwajalein Atoll offers a unique blend of history and underwater adventure, making it a must-visit for experienced divers.

Arno Atoll

Arno Atoll is a hidden gem in the Marshall Islands, offering an unparalleled diving experience. Surrounded by pristine, natural beauty, this atoll features white sandy beaches and turquoise waters that make you feel like you’re in the middle of nowhere. The diving here is exceptional, with vibrant coral gardens and a rich variety of marine life waiting to be explored. Divers can expect to encounter everything from colorful reef fish to larger pelagic species, making it a must-visit destination for underwater enthusiasts.

In Arno Atoll, you’ll truly feel like you’re in the middle of nowhere, surrounded by pristine, natural beauty full of white sandy beaches and turquoise waters.

Majuro Atoll

Majuro Atoll, located about 2,600 miles southwest of Hawaii, serves as the capital of the Marshall Islands. This atoll is relatively well-developed by Micronesian standards, offering amenities such as restaurants, supermarkets, and several hotels. Diving here is still in its early stages, which means many dive sites remain unexplored and pristine.

Divers can expect tremendous visibility in the waters around Majuro. The atoll offers a variety of dive experiences, from vibrant coral reefs to intriguing drop-offs. While the coral is generally in good condition, some areas have been affected by global warming, leading to occasional bleaching.

Majuro Atoll is a gateway to experiencing the rich cultural heritage of the Marshall Islands, making it a unique destination for both diving and cultural exploration.

For those planning a dive trip, it’s advisable to take out comprehensive travel and medical insurance before you travel. Dive shops on Majuro offer various packages, and you can also dive by liveaboard boat from May to August, boarding at the Kwajalein US military base.

Ratak Chain

silhouette of palm trees during sunset

The Ratak Chain, meaning "sunshine," is located on the eastern side of the Marshall Islands and is renowned for its exceptional dive sites. This chain offers some of the most popular diving spots in the region, making it a must-visit for diving enthusiasts. Explore top dive sites that feature vibrant coral gardens, diverse marine life, and crystal-clear waters. The Ratak Chain provides a unique underwater experience that rivals even the best of French Polynesia’s underwater world.


  • Vibrant coral gardens
  • Diverse marine life
  • Crystal-clear waters

The Ratak Chain is a diver’s paradise, offering an unparalleled underwater adventure that showcases the natural beauty of the Marshall Islands.

Ralik Chain

The Ralik Chain is renowned for offering some of the best diving experiences in the Marshall Islands. This chain of atolls and islands is a diver’s paradise, featuring pristine coral reefs and an abundance of marine life. Divers can explore a variety of underwater landscapes, from vibrant coral gardens to dramatic drop-offs teeming with fish. The Ralik Chain is perfect for both novice and experienced divers looking to explore the underwater wonders of the Marshall Islands.

Shark Pass

a person swimming in the ocean next to a rock

Shark Pass is a unique dive site that should not be missed if conditions allow. Located at the southwestern corner of the atoll, the outer wall is bustling with marine life, offering an exhilarating experience for divers. Hundreds of gray reef and silvertip sharks glide through the upper layers of water, accompanied by tuna, jacks, and the impressive Napoleon wrasse.

  • Best Time to Dive: The best time to explore Shark Pass is during the dry season when visibility is at its peak.
  • Marine Life: Expect to see a variety of shark species, including gray reef and silvertip sharks, as well as other pelagic fish.

For those looking to explore the best dive sites in the Marshall Islands, Shark Pass offers a thrilling and unforgettable underwater adventure.

USS Saratoga

The USS Saratoga is an American aircraft carrier that became surplus to requirements after World War II. It was subsequently used in Operation Crossroads, a series of nuclear weapon tests conducted by the United States at Bikini Atoll in the summer of 1946. The purpose of these tests was to investigate the effect of nuclear weapons on naval ships. The Saratoga, along with 11 other crafts, was sunk during these tests, specifically during the Baker test, which was detonated 90 feet (27 meters) underwater.

The wreck of the Saratoga lies between 12 and 50 meters underwater. It is upright and in good condition, with abundant sea life making it a great dive site. Voted one of the best wreck dives in the world, the USS Saratoga is one of only three diveable aircraft carrier wrecks globally. With a flight deck over 885 feet (270 meters) long, several dives are needed to explore and fully appreciate this magnificent vessel. The ship was armed and loaded in preparation for the nuclear tests, adding to the intrigue and historical significance of the dive.

Berman Lirok Caleb

an old gas station with a yellow bus in the background

Berman Lirok Caleb is a name synonymous with diving in the Marshall Islands. Known for his extensive knowledge and passion for the underwater world, Caleb has been a guiding light for many diving enthusiasts exploring the region. His expertise in navigating the diverse and vibrant marine ecosystems of the Marshall Islands has made him a respected figure in the diving community.

Caleb’s contributions to the diving scene are not just limited to his guiding skills. He has been instrumental in promoting sustainable diving practices, ensuring that the pristine underwater environments remain unspoiled for future generations. His dedication to marine conservation is evident in his efforts to educate divers about the importance of preserving marine life and habitats.

Berman Lirok Caleb’s influence extends beyond the Marshall Islands, inspiring divers worldwide to explore and protect the ocean’s wonders.

For those looking to dive in the Marshall Islands, following in the footsteps of Berman Lirok Caleb offers an unparalleled experience. From the historic wrecks of Bikini Atoll to the vibrant coral reefs of Arno Atoll, Caleb’s legacy is a testament to the beauty and importance of the underwater world.

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The Marshall Islands offer some of the most pristine and diverse diving experiences in the world. From the hauntingly beautiful shipwrecks of Bikini Atoll to the vibrant coral reefs of Majuro and Arno Atoll, there is something for every level of diver. The islands’ remote location ensures that the underwater environments remain largely undisturbed, providing a unique opportunity to explore marine life in its natural habitat. Whether you’re a seasoned diver or a beginner, the Marshall Islands’ dive sites promise an unforgettable adventure. So pack your gear, book your trip, and get ready to discover the underwater wonders of this Pacific paradise.

Frequently Asked Questions

What are the best dive sites in the Marshall Islands?

The best dive sites in the Marshall Islands include Bikini Atoll, Rongelap Atoll, Kwajalein Atoll, Arno Atoll, Majuro Atoll, Ratak Chain, Ralik Chain, Shark Pass, USS Saratoga, and Berman Lirok Caleb.

What can I expect to see when diving at Bikini Atoll?

Bikini Atoll is famous for its shipwrecks from World War II, including the USS Saratoga. Divers can explore a graveyard of ships and enjoy the unique underwater environment created by these wrecks.

Are there any special requirements for diving in the Marshall Islands?

While there are no specific requirements for diving in the Marshall Islands, it is recommended that divers have some experience, especially if they plan to explore deeper wrecks or areas with strong currents. Nitrox certification and training beyond beginner level are also recommended for some dive sites.

What is the visibility like when diving in the Marshall Islands?

Visibility in the Marshall Islands can range from 18 meters to 50 meters, depending on the dive site and weather conditions. Generally, the visibility is excellent, making it a great destination for underwater photography.

Can I arrange custom dive packages in the Marshall Islands?

Yes, custom dive packages can be arranged for divers who wish to have multiple dives over the duration of their stay. These packages can be tailored to include specific dive sites and preferences.

Is it safe to dive at Bikini Atoll?

Yes, it is now safe to dive at Bikini Atoll. The area has been declared safe for diving, and it offers world-class wreck diving experiences, including the famous USS Saratoga.

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