Eil Malk

Island

Eil Malk in Palau contains the famous jellyfish lake (Ongeim'l Tketau) used for guided snorkeling with non‑stinging jellyfish, and surrounding lagoons that draw divers to the Rock Islands.

Eil Malk Map data © OpenStreetMap contributorsKororKoror IslandMalakal IslandNgerekebesangEil Malk
In this guide

Eil Malk essentials

Country: Palau
Driest months: Feb-Apr
Pay in: Dollar ($)
Language: English

Eil Malk at a Glance

About Eil Malk

Eil Malk is an island in the Rock Islands group of Palau’s Koror State, noted for containing a distinctive marine lake known internationally as Jellyfish Lake. The island and its lake are part of the Rock Islands Southern Lagoon, inscribed as a UNESCO World Heritage Site.

The island’s primary highlight is the lake, where millions of golden jellyfish live in a stratified marine lake and where guided snorkeling is the usual visitor activity. The lake’s ecological conditions and the jellyfish population make it one of the most visited natural attractions in the Rock Islands.

The lake and island have been used traditionally by local communities and more recently have been managed for conservation and tourism. The Rock Islands and their lagoons are protected for their biodiversity and cultural values.

Eil Malk lies within Palau’s Rock Islands in Koror State, among a dense cluster of limestone islets and sheltered lagoons in the western Pacific.

  • World Heritage status: The island is part of Palau’s Rock Islands Southern Lagoon, a UNESCO World Heritage Site inscribed in 2012.
  • Jellyfish population and access: The marine lake supports a very large population of golden jellyfish; snorkeling is the typical way visitors experience the site and access is regulated to protect the ecosystem.

What to See#

  • Jellyfish Lake: A marine lake on Eil Malk commonly known as Jellyfish Lake (Ongeim’l Tketau), famous for its nonstinging golden jellyfish and a layered marine lake ecosystem.
Things to Do
When to Go

Best Time to Visit Eil Malk

November-April generally offers the best conditions for sea access and snorkeling around Palau's islands.

Dry season
November-April · 24-30°C
Calmer seas and clearer snorkeling conditions.
Wet season
May-October · 24-30°C
More showers and occasional rougher water; fewer tourists.

Weather & Climate near Eil Malk

Climate

Tropical climate with consistently warm temperatures year-round. Temperatures range from 22°C to 30°C. Heavy rainfall (3388 mm/year), wettest in July.

Air Quality: AQI 20 Good
Temperature & Rainfall
Temperature Range
30°
Warmest Month
22°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 22° - 28° 25° 271 mm - - 3.6 m/s - -
February - 23° - 29° 26° 197 mm - - 3.8 m/s - -
March - 23° - 30° 26° 192 mm - - 3.4 m/s - -
April - 23° - 30° 27° 221 mm - - 3.2 m/s - -
May - 23° - 30° 27° 273 mm - - 2.5 m/s - -
June - 23° - 30° 27° 362 mm - - 2.6 m/s - -
July - 23° - 30° 26° 404 mm - - 2.6 m/s - -
August - 23° - 30° 26° 346 mm - - 2.8 m/s - -
September - 23° - 29° 26° 282 mm - - 2.7 m/s - -
October - 23° - 30° 26° 313 mm - - 3.0 m/s - -
November - 22° - 29° 26° 254 mm - - 3.2 m/s - -
December - 22° - 29° 25° 273 mm - - 3.4 m/s - -
Getting There & Around

How to Get to Eil Malk

Access is by boat charter from Koror; arrangements typically require coordination with licensed operators and compliance with Palauan park and customary rules.

Tips for Visiting Eil Malk

  • Boat access is necessary - coordinate with local charter operators in Koror for landing permissions
  • Bring snorkeling gear: surrounding reefs host abundant marine life
  • Respect local customary practices and private land on larger islets