Jellyfish Lake · Travel guide · Updated 2026

The Enchanting Jellyfish Lake of Palau

Discover the mesmerizing Jellyfish Lake in Palau, where millions of stingless jellyfish create a magical underwater ballet in a serene saltwater haven.

Nestled within the Rock Islands of Palau, Jellyfish Lake is a marine wonder like no other. This secluded saltwater lake is home to millions of golden jellyfish, offering a surreal experience as these gentle creatures float gracefully through the water. The lake's unique ecosystem has evolved over millennia, resulting in jellyfish that have lost their ability to sting, making it a safe and magical place for snorkeling and swimming. The journey to Jellyfish Lake is an adventure in itself, involving a scenic boat ride through the stunning Rock Islands and a short hike through lush, tropical forest. Once you arrive, the sight of the lake's shimmering surface and the golden jellyfish beneath is truly mesmerizing. The experience of swimming alongside these ethereal creatures is both peaceful and exhilarating, providing a deep connection with nature's wonders. In addition to the jellyfish, the lake is surrounded by rich biodiversity, including colorful coral reefs and a variety of marine life. The surrounding Rock Islands offer further exploration opportunities, with hidden beaches, limestone formations, and ancient cultural sites. Jellyfish Lake is not just a destination; it is a journey into a world where nature's beauty and tranquility reign supreme.

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Temperature

°C

Precipitation

mm
Warmest monthsJan–Dec
Longest daylightMar–Oct
Driest periodAug–Dec

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    Jellyfish Lake Essentials

    Core city planning details in the same structured guide format used across the Country/Region page language.

    How to Get There

    Jellyfish Lake is located on Eil Malk Island in Palau. The nearest airport is Roman Tmetuchl International Airport (ROR) in Koror. From there, you can take a taxi to a local marina, and then a boat to Eil Malk Island. Guided tours often include transportation to and from the island, which is a convenient option for most travelers.

    Transportation

    Koror, the main city, has taxis and rental cars available for transportation. For getting to Jellyfish Lake specifically, boats are the primary mode of transport. Tours often include boat transportation to the lake. Given the small size of the island, walking is a viable option once you arrive.

    Currency and Payment

    The official currency of Palau is the U.S. Dollar (USD). Credit cards are widely accepted in hotels, restaurants, and larger shops in Koror. However, it is advisable to carry cash for smaller establishments and on excursions to remote areas, such as Jellyfish Lake. ATMs are available in Koror, but not on the smaller islands.

    Safety

    Palau is generally a safe destination for tourists, with low crime rates. However, standard precautions should be taken to avoid petty theft. Always keep an eye on your belongings and avoid isolated areas at night. There are no specific high-crime neighborhoods targeting tourists in Palau.

    Emergency Situations

    In case of emergency, contact local authorities by dialing 911. Medical facilities are available in Koror, and it is advisable to have travel insurance that covers medical emergencies. For minor health issues, there are pharmacies in Koror where you can purchase over-the-counter medications.

    Do's and Don'ts

    Fashion: Do wear lightweight, breathable clothing suitable for tropical climates. Don't wear heavy or restrictive clothing. Religion: Do respect local customs and traditions. Don't disrupt religious ceremonies or enter sacred sites without permission. Public Transport: Do be courteous and respectful. Don't litter or cause disruptions. Greetings: Do greet people with a friendly wave or a smile. Don't be overly familiar with strangers. Eating & Drinking: Do try local dishes and accept food graciously. Don't waste food or drink excessively.

    Local Tips

    To experience Jellyfish Lake like a local, consider visiting early in the morning to avoid crowds. Engage with local tour guides, who can provide valuable insights into the lake's history and ecosystem. Bring snorkeling gear, as swimming with the jellyfish is a unique experience. Ensure you follow guidelines to avoid harming the delicate environment.

    History of Jellyfish Lake

    Follow the city from Roman Londinium to its modern global identity through landmark moments that still shape the visitor experience.

    Formation and Geological History

    Jellyfish Lake, known locally as Ongeim'l Tketau, is a marine lake situated on Eil Malk island in Palau. The lake was formed approximately 12,000 years ago during the Holocene epoch, when rising sea levels filled the basin with seawater. Over millennia, the lake became isolated from the surrounding ocean, creating a unique environment that allowed for the evolution of its distinctive jellyfish population.

    Discovery and Early Exploration

    The first recorded exploration of Jellyfish Lake by Westerners occurred in the early 20th century. During the German colonial period in Palau (1899-1914), scientists began documenting the unique ecological features of the lake. Subsequent expeditions in the 1920s and 1930s conducted by Japanese researchers further contributed to our understanding of the lake's biological and geological significance.

    World War II Impact

    During World War II, Palau became a strategic location for both Japanese and Allied forces. Jellyfish Lake and its surrounding areas were largely untouched by direct conflict, but the broader environmental impact of the war led to changes in local ecosystems. The lake's isolation may have protected its delicate environment from the more severe disruptions experienced elsewhere in Palau.

    Tourism and Conservation

    In the latter half of the 20th century, Jellyfish Lake gained international attention as a unique natural wonder. The Palauan government, recognizing the lake's ecological and economic importance, established strict conservation measures. Today, Jellyfish Lake is a popular tourist destination, attracting visitors who swim among its non-stinging jellyfish. Conservation efforts continue to ensure the lake's delicate ecosystem remains protected for future generations.

    Climate Change and Environmental Challenges

    In recent years, Jellyfish Lake has faced challenges related to climate change and environmental degradation. Rising temperatures and changing oceanic conditions have led to periodic declines in the jellyfish population. Research and monitoring efforts are ongoing to understand and mitigate these impacts, with the aim of preserving the lake's unique biodiversity.

    Phrasebook

    Local Phrases about Jellyfish Lake

    Browse practical local phrases by situation. Each group opens only when needed, keeping the guide tidy while preserving the full phrase set.

    6 phrase groups English + pronunciation
    Basics
    • HelloAlii
      [ah-lee]
    • GoodbyeKlaude
      [klow-deh]
    • YesOngal
      [ong-gal]
    • NoMeleches
      [meh-leh-ches]
    • Please/You're welcomeCheldecheduch
      [chel-deh-cheh-dooch]
    • Thank youKe kmal mesaul
      [keh k-mahl meh-sow-ool]
    • Excuse me/SorryKlaud
      [klowd]
    • How are you?Kemam a kmal?
      [keh-mahm ah k-mahl]
    • Fine. And you?Chad er a kmal. A ngklek?
      [chahd er ah k-mahl. ah ng-lek]
    • Do you speak English?Kemam a kmal ousbech er a Belau?
      [keh-mahm ah k-mahl ows-behch er ah beh-lao]
    • I don't understandA chaung
      [ah chow-ng]
    Eating & Drinking
    • I'd like to see the menu, pleaseNg diak el mengilt a rechad er a tekoi, cheldecheduch
      [ng dee-ak el meng-illt ah reh-chad er ah teh-koy, chel-deh-cheh-dooch]
    • I don't eat meatA diak lekau a telkib el chad
      [ah dee-ak leh-kow ah teh-lkeeb el chahd]
    • Cheers!Kmochel
      [k-moh-chel]
    • I would like to pay, pleaseNg diak el melim a rechad er a tekoi, cheldecheduch
      [ng dee-ak el meh-leem ah reh-chad er ah teh-koy, chel-deh-cheh-dooch]
    Emergencies
    • Help!Kmal mla mo kau
      [kmahl m-lah moh kow]
    • Go away!Kmal melekoi
      [kmahl meh-leh-koy]
    • Call the Police!Kmal mo chellab a beluu
      [kmahl moh chel-lahb ah beh-loo]
    • Call a doctor!Kmal mo ungil a berrus
      [kmahl moh oong-gil ah beh-roos]
    • I'm lostA diak lekau a chad
      [ah dee-ak leh-kow ah chahd]
    • I'm illA diak el bebil
      [ah dee-ak el beh-beel]
    Shopping
    • I'd like to buy...Ng diak el kau a...
      [ng dee-ak el kow ah...]
    • I'm just lookingNg diak el ngarngii a rechad
      [ng dee-ak el ngar-ng-ee ah reh-chad]
    • How much is it?Kmochel a bung
      [k-moh-chel ah boong]
    • That's too expensiveTe kmo ng meringel
      [teh k-moh ng meh-ring-ehl]
    • Can you lower the price?Meng diak el menguiu a bung?
      [meh-ng dee-ak el meng-wee-oo ah boong]
    Time & Numbers
    • What time is it?Kmochel a bung
      [k-moh-chel ah boong]
    • It's one o'clockKmal meral di teloi
      [kmahl meh-rahl dee teh-loh-ee]
    • Half past (10)Sesenglel a teloi (10)
      [seh-seng-lehl ah teh-loh-ee (10)]
    • MorningA rengalek
      [ah reh-ngah-lek]
    • AfternoonA rekungalek
      [ah reh-koo-ngah-lek]
    • EveningA rrat a klisichel
      [ah r-raht ah klee-see-chel]
    • YesterdayA rael a kall
      [ah rahl ah kahl]
    • TodayA rengalek
      [ah reh-ngah-lek]
    • TomorrowA rrat a klisichel
      [ah r-raht ah klee-see-chel]
    • 1Remech
      [reh-mehch]
    • 2Dirkair
      [deer-kai-er]
    • 3Telu
      [teh-loo]
    • 4Rau
      [row]
    • 5Ngimel
      [ngi-mel]
    • 6Kuoi
      [kwoy]
    • 7Teluau
      [teh-loo-ow]
    • 8Deluach
      [deh-lwach]
    • 9Kdengar
      [kdeh-ngar]
    • 10Udoud
      [oo-dowd]
    Transport & Directions
    • Where's a/the...?Meng di chudel a...
      [meh-ng dee chuh-del ah...]
    • What's the address?Kmochel a chesuchel?
      [k-moh-chel ah che-soo-chel]
    • Can you show me (on the map)?Meng diak el menguiu a rechad er a tekoi?
      [meh-ng dee-ak el meng-wee-oo ah reh-chad er ah teh-koy]
    • When's the next (bus)?Kmochel a belau a ngarngii?
      [k-moh-chel ah beh-lau ah ngar-ng-ee]
    • A ticket (to ....)Ng di chudel a tiket (er a...)
      [ng dee chuh-del ah tee-ket (er ah...)]

    Explore Jellyfish Lake in Photos

    A quick visual tour through classic views, riverside landmarks, royal streets, and skyline moments.

    File:Snorkeling with Jellyfish.jpg - Wikipedia
    File:Snorkeling with Jellyfish.jpg - Wikipedia
    File:Rock-Islands-Palau-1-2016-aerial-view-Luka-Peternel.jpg - Wikipedia
    File:Koror-palau-downtown20071219.jpg - Wikimedia Commons

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