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Mili Atoll
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Mili Atoll is one of the most expansive coral systems in the Marshall Islands, comprising a ring of 92 individual islands that encircle a massive lagoon covering 760 square kilometers. It possesses the second-largest land area of any atoll in the country, making it a significant sanctuary for both terrestrial and marine biodiversity. Historically, Mili served as a major Japanese military base during World War II, leaving behind a legacy that now rests beneath the waves. The lagoon floor is a world-class diving destination, home to numerous shipwrecks and aircraft that have been reclaimed by coral growth. The terrestrial environment consists of lush coconut groves and pandanus trees, providing vital nesting grounds for rare seabird species. Due to its remote location, the atoll maintains an exceptionally pristine environment, where reef sharks, rays, and hundreds of tropical fish species inhabit the spirited coral gardens of the reef passages.
- Location: Marshall Islands
- Nearby: Mili (21 km)
Best time to visit & climate
The most pleasant time to visit is Feb, Mar, Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Rain mm | 227 | 164 | 224 | 271 | 260 | 240 | 259 | 224 | 244 | 260 | 255 | 270 |
📋 Practical info
Best season
The dry season from December to April has calm seas and clear visibility for reef dives. Marine biodiversity is high year-round, but the best time for whale sharks is from January to March.
Best time of day
Early morning dives provide the best light and most active wildlife along the outer reefs. Afternoon hours see calmer lagoon areas, convenient for snorkeling.
Etiquette
Do not touch corals or marine life; avoid wearing gloves to protect fragile reefs. Fishing is prohibited in certain protected zones - check local regulations beforehand.
What to bring
Divers need full gear including a dive torch and underwater camera. Snorkelers should bring mask, snorkel, fins and a reef-safe wetsuit.
Getting there
Mili Atoll is reachable by island hopper flight or chartered boat from Majuro. Within the atoll, local outrigger canoes connect the inhabited islands.
What to expect
Large marine animals like manta rays and sharks often appear only after multiple dives. Take time to understand the currents and tidal flows at the passes.
Geography
Facts
- Land area: 16.1 km².
- Lagoon area: 410 km².
- Population: approximately 1,000.
- Highest elevation: 3 meters.
- Main economic activities: fishing, copra.
- WWII wrecks: present.
Explore nearby
Notable places around
Route planner — Car & Motorhome
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Sights nearby
Frequently asked questions
How is diving at Mili Atoll?
The atoll provides crystal clear water and rich coral reefs, well-suited for experienced divers.
Are there accommodations on Mili?
There are only very basic, local guesthouses. You should travel self-sufficiently.
When is the best time to visit?
The dry season from December to April gives the best weather for outdoor activities.
How do you get to the atoll?
Access is usually by domestic flight from Majuro or via supply ship.
Do you need a guide?
Yes, a local guide is highly recommended due to the remote location and lack of infrastructure.
Mili Atoll: where is it located?
Mili Atoll is located in Marshall Islands.
Mili Atoll: when is the best time to visit?
The most pleasant time to visit is Feb, Mar, Aug.
Mili Atoll: why is it worth visiting?
Mili Atoll is one of the most expansive coral systems in the Marshall Islands, comprising a ring of 92 individual islands that encircle a massive lagoon covering 760 square kilometers.
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Nearby cities
Majuro
Majuro is the capital and largest city of the Marshall Islands.
Ebeye
Ebeye is the most populous island of the Kwajalein Atoll.
Ebeye Economic Hub
The most densely populated commercial center in the country.
Arno
Arno is the main settlement on the Arno Atoll, which is the closest atoll to Majuro.
Laura
Laura is located at the western tip of the Majuro Atoll and is known for its farming.
Laura Beach
An idyllic sandy beach at the western end of Majuro Atoll, known for its tranquility.
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Jabor
Jabor is the administrative center of the Jaluit Atoll.
Wotje
Wotje is the largest settlement on the Wotje Atoll.
Mili
Mili is the administrative center of the Mili Atoll.
Kili
Kili is an isolated island in the Ralik Chain.
Aur
Aur is the main settlement of the Aur Atoll.
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Mejit
Mejit is a unique island that does not form an atoll.
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Ajeltake
Ajeltake is a significant settlement located on the Majuro Atoll.
History & landmarks
Ship Registry Headquarters
Administrative center for one of the world's largest ship registries.
Majuro Central Market
The primary trading hub for local produce and handicrafts.
Capitol Building
The Capitol Building in Majuro is the seat of the Marshall Islands government.
Laura Agriculture Center
The most important agricultural area of Majuro.
Laura Village Cultural Center
Laura is located at the western end of Majuro and is known for its traditional lifestyle.
Jabor (Jaluit Atoll)
Former administrative center during the German and Japanese colonial periods in the Marshall Islands.
Nature
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Mili Bird Colonies
The outer islets of Mili Atoll host massive breeding populations of frigatebirds and boobies.
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Arno Coral Gardens
These underwater ecosystems are renowned for their exceptional diversity of hard corals and reef fish.
Arno Atoll
A complex atoll system near Majuro featuring three separate lagoons and a multitude of small islands.
Majuro Atoll
A vast coral atoll with a central lagoon, consisting of numerous small islets that protect the inner waters from ocean swells.
Jaluit Atoll
A significant conservation area featuring diverse mangrove forests and a complex network of coral banks.
Jaluit Conservation Area
This Ramsar-designated site includes mangroves, coral reefs, and critical habitats for local biodiversity.
More places
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Mili Atoll Garrison
A heavily fortified Japanese base that remained under Allied siege until the end of WWII.
Mili War Monument
This monument on Mili Atoll recalls the intense bombardments of WWII.
Majuro Bridge
Majuro Bridge connects the islands of the Majuro Atoll together.
Delap Business District
The commercial heart of Majuro featuring banks, government buildings, and retail.
Port of Majuro
The primary gateway for international trade and tuna transshipment.
Delap Dock
Delap Dock is the primary economic hub of the Marshall Islands.
Tobolar Copra Processing Plant
This facility processes dried coconut meat into coconut oil and soap.
Majuro Fishing Port
A specialized port for the fishing fleet.