Plizio Visual Lab

Merir Island

Plizio editorial teamUpdated: Jun 2026Data Sources

wildlife

Weather…

Merir Island is a remote coral island located in the far southwest of the Republic of Palau, forming part of the Sonsorol island group. Nearly entirely covered in lush tropical forest, the island is a vital ecological sanctuary, most famous as a critical nesting site for green sea turtles. With a very small human population, Merir remains one of the most undisturbed islands in the region, allowing its delicate ecosystems to thrive. It also serves as an important resting point for migratory birds traveling across the vast Pacific Ocean. Surrounding the island is an extensive and healthy reef system, teeming with marine life and acting as a natural barrier against the open sea. Due to its extreme isolation, Merir is rarely visited by tourists, making it a precious site for conservation and scientific study. It stands as a pristine example of the natural beauty of Micronesia, where the ancient cycles of wildlife, from sea turtle migrations to avian flight paths, continue in peace.

Best time to visit & climate

The most pleasant time to visit is Feb, Apr, Sep.

	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	192	155	193	151	229	284	273	183	151	152	162	177

📋 Practical info

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Best season

The best months for observing sea turtles are the nesting season from June to September. During the rest of the year, the island's forests host many endemic bird species.

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Best time of day

Early morning, just before sunrise, is the best time to see turtles emerging from the water. Late afternoon often sees them returning to the beach to rest.

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Etiquette

Never approach nesting turtles and avoid using artificial lights on the beach. Stepping on nests is strictly prohibited to protect the eggs.

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What to bring

Binoculars help observe turtles from a distance without disturbance. Sturdy shoes and long clothing protect against dense vegetation and insects.

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Getting there

Merir Island is remote, accessible only by boat or charter flight from Koror. Travel requires careful planning and permits from local authorities.

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What to expect

Turtles are nocturnal and shy; be prepared to wait quietly for hours. A single visit may not yield a sighting, so multi-day stays are advisable.