Blue Holes
Four shafts in the reef top opening into a large chamber that exits onto the wall.
- Depth
- 4–35 m13–115 ft
- Difficulty
- Intermediate
- Entry
- Boat
- Typical current
- Light
- Coordinates
- 7°8.496′N 134°13.278′E
- Activities
- Scuba
Four openings in the reef flat drop into a single cathedral-like chamber, with the light shafts that make this one of the most photographed sites in Palau. The chamber exits onto the wall around 30 m. Natural light is present throughout, so it dives as a cavern rather than a cave, but a torch reveals the soft corals in the side pockets. Often run as a drift into Blue Corner.
By boat from Koror, immediately adjacent to Blue Corner.
Best season
- GoodSep–Jun
- FairJul–Aug
Before you get in
- A cavern — inside the daylight zone, but still with a ceiling, and with stretches where you cannot simply go up.
- Past 30 m, where no-stop time and gas both go quickly and nitrogen narcosis starts to show.
- A wall. There is no bottom in sight to judge against, so depth is kept by the gauge alone — and it is easy to end up deeper than intended.
Taken from this site’s recorded depth, type and current, and nothing else. An empty list is not a safe site — the sea on the day, the local geography and the boat traffic are not in it. The briefing on the spot comes first.
Conditions
No live conditions for this site yet.
We only show numbers we can attribute to a source.
Sea state and tide
Marine life you may see
- Giant clamTridacna gigasRare
- Blacktip reef sharkCarcharhinus melanopterusRare
- Whitetip reef sharkTriaenodon obesusSeasonal
- NudibranchNudibranchiaCommon
- FlatwormPseudoceros spp.Rare
- Staghorn coralAcropora spp.Common
- Chambered nautilusNautilus pompiliusRare
- Feather starCrinoideaCommon
- Moorish idolZanclus cornutusCommon
From divers
What people who were in the water reported. Not a forecast, and not a judgement about whether the site is safe to dive.
No recent reports from divers. If you dived here in the last two weeks, you can say how it was.
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How divers rate this site
Rating is open to divers who have logged a dive here.
Who is going
Nobody has planned a dive here yet.
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- Koror Blue WaterUnverified
Boat dives · Equipment rental · Nitrox
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