Feature Destination: Marshall Islands, a Pacific Sanctuary of Biodiversity

The Republic of the Marshall Islands is a remote chain of atolls and volcanic islands in the central Pacific Ocean, positioned between Hawaii and the Philippines. Despite its striking ecological and cultural richness, it remains one of the least visited nations in the world. With only about 10,500 tourists annually and over one-third of its atolls uninhabited, the Marshall Islands offer a unique opportunity to explore relatively undisturbed tropical marine ecosystems, significant sites of World War II history, and communities adapting to the frontline of climate change.

Travelers typically begin in Majuro, the political and economic capital. Though densely developed compared to the outer islands, Majuro provides access to snorkeling, diving, and cultural institutions such as the Alele Museum. A short boat ride brings visitors to Eneko Island, ideal for a quiet beach day, or Arno Atoll, which offers white-sand beaches, traditional Marshallese hospitality, and little in the way of modern distraction.

Visitors may snorkel above coral gardens teeming with Chaetodon lunula (raccoon butterflyfish), Zanclus cornutus (Moorish idol), and Amphiprion percula (orange clownfish) or dive among historical wrecks.

Why Visit the Marshall Islands: Majuro and surrounding islands offer a combination of activities grounded in the island’s geography as an atoll—a ring-shaped reef or series of islets surrounding a central lagoon. The clear tropical waters and stable year-round temperatures between 21 and 34°C support thriving coral reefs, mangroves, and seagrass beds that are crucial habitats for hawksbill turtles (Eretmochelys imbricata), giant clams (Tridacna gigas), and reef sharks (Carcharhinus melanopterus).

History Above and Below the Surface

While the biodiversity of the Marshall Islands is a significant draw, its human history is equally profound. The islands were used as a strategic base by Japan during World War II before falling under United States control. Between 1946 and 1958, the U.S. conducted 67 nuclear tests in the region, including the infamous Castle Bravo detonation at Bikini Atoll. The effects of these tests continue to impact communities and ecosystems today.

Fallout spread across multiple atolls, leading to long-term health, environmental, and cultural consequences.

Visitors can engage with this legacy through institutions such as the Alele Museum, which chronicles the region’s wartime and postwar history, including the nuclear testing era. Yet perhaps the most powerful historical encounters take place underwater.

Scuba divers can explore Japanese and American shipwrecks, aircraft remains, and sunken supply craft, which have become artificial reefs. These relics, now colonized by hard corals (Acropora spp.) and sponges (Porifera), are home to myriad marine species and serve as living laboratories in marine ecology and resilience.

These underwater sites also present an ethical opportunity for reflection on the intersection of geopolitics, environmental justice, and ocean stewardship. Many Marshallese families were forcibly displaced as a result of the nuclear testing and continue to face challenges related to radiation exposure. Local organizations and members of the National Nuclear Committee are working to raise awareness and integrate this history into education and conservation efforts.

Sites of Ecological and Cultural Interest

The most accessible atoll for eco-tourism is Majuro, with its handful of accommodations, including the locally owned Hotel Robert Reimers and the Marshall Islands Resort. From there, visitors can arrange snorkeling trips or day excursions to Eneko Island, which offers shallow reefs, picnic areas, and opportunities to witness reef regeneration firsthand. Local dive operators such as Raycrew offer guided tours to coral reef sites and wrecks.

For a more secluded experience, Arno Atoll—only an hour by boat from Majuro—represents the idyllic Pacific landscape. Its long beaches and translucent waters remain relatively undeveloped. Birders may spot native seabirds such as Sula sula (red-footed booby) and Fregata minor (great frigatebird), while the more patient snorkeler may glimpse octopuses or Hippocampus kuda (common seahorse) among seagrass beds.

Cultural Respect: Inland, the cultural life of the Marshall Islands continues through handicrafts, traditional canoe building, and subsistence practices. Local markets offer finely woven pandanus mats, model sailing canoes, and locally caught fish. Tourists are advised to dress conservatively, particularly on outer atolls where customs are traditional. Swimwear is generally not worn in public areas, and many locals swim fully clothed.

Logistics, Best Travel Seasons, and Conservation Considerations

Reaching the Marshall Islands requires planning. United Airlines operates the Island Hopper, which connects Honolulu to Guam with stops in several Micronesian nations, including Majuro. Flights are infrequent and expensive, and delays are common due to weather and infrastructure limitations.

Once on Majuro, travel between atolls is possible via domestic airline (Air Marshall Islands) or irregular boat services. For trips to Arno, a boat departs from near the Robert Reimers dock three times a week.

Essential Travel Information:

• Health requirements: Proof of measles vaccination required
• Language: English widely spoken, Marshallese is primary language
• Currency: U.S. dollar (national cryptocurrency SOV introduced in 2018)
• Best travel months: December through March (cooler, breezier conditions)
• Water filtration essential, even in hotels
• Minimize plastic use due to limited waste management infrastructure

The climate is tropical, hot, and humid year-round, with December through March offering slightly cooler and breezier conditions. These months are generally best for diving, snorkeling, and outdoor activities.

For conservation professionals, students, and ecotourists, the Marshall Islands represent a rare confluence of high biodiversity, cultural integrity, and geopolitical significance. These islands are at the forefront of climate change, with many areas rising less than three meters above sea level. The Intergovernmental Panel on Climate Change (IPCC) has identified small island states such as the Marshall Islands as acutely vulnerable to sea level rise, making them essential places for studying resilience, adaptation, and the human dimensions of environmental change.

Not Your Typical Destination

The Marshall Islands are not a typical tourist destination. There are no luxury resorts, few beaches accessible without effort, and limited infrastructure. But therein lies their power. This is a place where coral ecosystems still bloom in relative peace, where history lies both above and below the waves, and where communities are living through and responding to the most pressing environmental issues of our time.

For those who care about the ocean, climate, and cultures of resilience, a trip to the Marshall Islands offers more than escape. It offers connection, knowledge, and the rare chance to witness both the beauty and fragility of one of the planet’s most extraordinary archipelagos.

Planning Your Marshall Islands Adventure?

The Marshall Islands offer an unparalleled opportunity to experience authentic Pacific island culture while contributing to sustainable tourism. Book your Island Hopper flight well in advance and consider extending your journey to explore other Micronesian destinations.