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Arno Atoll

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Arno Atoll (Marshall Islands)

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Arno Atoll is a stunningly complex coral system in the Marshall Islands, situated just 15 kilometers east of the capital, Majuro. It is unique for its structure, comprising 133 individual islets that encircle three distinct lagoons: a central lagoon of extraordinary depth and two smaller secondary lagoons. Despite having a total land area of only 13 square kilometers, the atoll spans a vast maritime territory. Arno is celebrated throughout the Pacific for its bountiful fishing grounds, which serve as a primary food source for both locals and the nearby capital. The residents are also famous for their exceptional weaving skills, producing some of the finest traditional handicrafts in the islands, including the renowned Kili bags. Life on Arno moves at a traditional pace, centered around copra production and ocean harvesting. Its pristine coral reefs and crystal-clear waters make it a paradise for divers and snorkelers seeking to explore untouched marine ecosystems away from the urban bustle of Majuro.

Best time to visit & climate

The most pleasant time to visit is Jan–Mar.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °C282828282828282828282828
Rain mm161137162227211223252234260276267224

📋 Practical info

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Best season
The best time to visit Arno Atoll is the dry season from December to April when weather is settled and water is clear. In the rainy season from May to November, winds are stronger and snorkeling may be limited.
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Best time of day
Morning hours between 7 and 10 a.m. offer the calmest conditions for snorkeling in the lagoons. Afternoon winds may pick up and churn the water.
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Etiquette
Respect local communities and their fishing grounds; do not enter private islands without permission. Dispose of waste properly to protect the fragile island environment.
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What to bring
Snorkeling gear and a dry suit are recommended as water can be cool depending on season. A GPS device or map helps navigate between the many small islands.
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Getting there
Arno Atoll lies about 30 kilometers east of Majuro and is reachable by boat. Regular ferries run from Majuro to the main islands of the atoll.
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What to expect
The lagoons are vast and wildlife is scattered; take your time to explore different spots. Moving slowly while snorkeling often reveals hidden coral formations and reef dwellers.

Geography

Coordinates
7.10000, 171.66670

Facts

  • Land area: 13.0 km².
  • Lagoon area: 338 km².
  • Population: approximately 2,500.
  • Distance from Majuro: 20 km.
  • Fish species: over 200.
  • Boat service to Majuro: regular.

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Notable places around

Route planner — Car & Motorhome

Where do you start? We build the route here, with stops and country notes along the way.

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Sights nearby

Frequently asked questions

How close is Arno to Majuro?
Arno is very close and often accessible by boat, making it a popular excursion.
What is typical for the cuisine?
Fresh fish, coconuts, and locally grown root vegetables.
Is it good for swimming?
Yes, there are beautiful, secluded beaches with turquoise water.
Is there internet?
Internet is only limited or non-existent.
Are there guided tours?
There are hardly any official tours; usually, you arrange everything privately.
Arno Atoll: where is it located?
Arno Atoll is located in Marshall Islands.
Arno Atoll: when is the best time to visit?
The most pleasant time to visit is Jan, Mar.
Arno Atoll: why is it worth visiting?
Arno Atoll is a stunningly complex coral system in the Marshall Islands, situated just 15 kilometers east of the capital, Majuro.
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