

Best for beginner divers, 1-30m, shore entry.
Jellyfish Lake, known locally as Ongeim’l Tketau, is one of approximately 70 marine lakes in the Rock Islands of Palau. These limestone depressions contain saltwater isolated from the surrounding lagoon. The site is accessible via boat followed by a shore entry. Snorkellers experience depths ranging from 1 to 30 metres, with visibility varying between 2 and 30 metres. Water temperatures are consistently warm, ranging from 29 to 30 degrees Celsius. Guided tours are available for this site, which is suitable for beginners. Species recorded around this area include wrasses, groupers, Napoleon wrasse, and various reef sharks, though these are not confirmed within the lake itself.
7.16162, 134.37583
The jellyfish are often described as stingless, but their sting is extremely mild and not usually felt by swimmers.
Access requires a Rock Islands permit, which costs $100 for a 10-day pass. Travelers usually reach the lake by boat from Koror as part of a day trip, followed by a short inland walk from the boat landing.
Recorded nearby, within 20km
Depth
Up to 30m
Visibility
2-30m
Skill Level
Beginner
Entry
Shore
Boat required
Water Temp
29-30°C
Current
None
Typical Dive
45 min
Yes, Jellyfish Lake is a designated snorkel site suitable for beginners.
Species recorded around this area include wrasses, groupers, Napoleon wrasse, and whitetip reef sharks, though these are not confirmed within the lake itself.
The depth at the site ranges from 1 to 30 metres, with an average depth of 30 metres.
While the entry is from the shore, a boat is required to reach the location.
Yes, Jellyfish Lake is considered suitable for beginners.
A rashguard or 2mm shorty is recommended for diving at Jellyfish Lake in Koror. Water temperatures range from 29°C to 30°C.
Divers at Jellyfish Lake in Koror should be aware of jellyfish. These encounters are generally rare and avoidable with proper awareness. Follow local safety guidance and maintain a respectful distance from all marine life.
Visibility at Jellyfish Lake in Koror typically ranges from 2 metres to 30 metres. Conditions vary with weather, tides, and seasons.