coralreefpalau.org · Research
Updated Apr 17, 2026Current monitoring, abundance, temperature, and scuba prohibition.
Jellyfish Lake - Ongeim’l Tketau
Ongeim’l Tketau is Palau's snorkel-only Jellyfish Lake in the Rock Islands.
SnorkelingBoatIntermediate0m - 30m
LakeShallow Freedive
Plan a boat transfer, permit, and short jungle walk; the lake is snorkel-only and jellyfish numbers swing with temperature and weather.
About Jellyfish Lake - Ongeim’l Tketau
Jellyfish Lake - Ongeim’l Tketau is Palau's best-known snorkel-only marine lake, reached by boat and a short jungle walk in the Rock Islands. Snorkelers move through a calm, sheltered surface layer among golden and moon jellyfish, while the lake's abundance swings with water temperature and seasonal weather. Scuba is prohibited, and access is managed with permits to protect the fragile lake.
Safety & Access
Site Conditions
Restricted access
Safety Notes
Stay above the anoxic layer, move gently, do not touch the jellyfish, and keep foreign items out of the lake.
Access Restrictions
Only snorkeling is allowed; scuba is prohibited.
Legal Notes
A Jellyfish Lake permit is required, and scuba diving is prohibited under site rules.
Where Is Jellyfish Lake - Ongeim’l Tketau?
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Local Intel For Jellyfish Lake - Ongeim’l Tketau
Community notes to help plan your visit.
Scuba Diving
Scuba is prohibited. The lake is snorkel-only and visitors must stay in the oxygenated upper layer.
Freediving
Not a freedive site. The rules keep visitors in the snorkel zone above the anoxic layer.
Snorkeling
Snorkeling is the right fit here: stay gentle, remain in the allowed layer, and treat the visit as a conservation-first outing.
Wildlife at Jellyfish Lake - Ongeim’l Tketau
Species commonly reported at this site, with direct links into their wildlife guides.
Research Estimate At Jellyfish Lake - Ongeim’l Tketau
Access · 2/5Challenging entry effort
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Aquatic Life · 4/5Great variety
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Facilities · 1/5No facilities
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Crowd / Popularity · 3/5Moderate
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- VisibilityResearch estimate
- 8m
