Slack Water
Palau · Western Pacific

Palau

Hook in at Blue Corner and let the sharks come to you.

At a glance

Best months
November to April
Water
27–30°C3 mm wetsuit is enough
Visibility
20–40 m
Current
StrongModerate to strong; down-currents at some sites
Certification
AdvancedSome sites possible for Open Water
How you dive
Land-based or liveaboard

When to go

November to April (dry season); October and May are good shoulder months.

Overview

Palau sits in the western Pacific, east of the Philippines, and is made up of more than three hundred islands. Its reputation in diving comes from current. Several ocean currents meet along its outer reefs, carrying nutrients to the drop-offs and drawing in sharks, schooling fish and manta rays. In Palau you rarely go looking for big animals. You find a spot in the current and wait for them to pass.

Blue Corner is the dive most people come for. It is a reef plateau that juts into open water, and when the current pushes across it divers clip a reef hook to dead rock and hang off the edge. Grey reef sharks patrol a few metres away, Napoleon wrasse drift past and jacks and barracuda school overhead. German Channel, a channel cut between the lagoon and the open sea, has manta cleaning stations on a sandy bottom and usually gentler water. Ulong Channel is a classic drift on an incoming tide over a field of hard coral.

There is more than pelagics. Palau was a battleground in the Second World War, and Japanese ships and aircraft lie on the lagoon floor. Chandelier Cave has air chambers where you can surface among stalactites. Above water, the Rock Islands are a UNESCO World Heritage Site and a common place to spend a surface interval.

Palau is diveable all year. The drier months from November to April bring the calmest seas and usually the best visibility, while May to October is wetter and windier but still workable. This is not a place for a newly certified diver to go straight to the famous sites. Most of the headline dives assume Advanced Open Water, good buoyancy and some drift experience, and you should be comfortable deploying a surface marker buoy, because boats follow the buoy to pick you up.

Visitors sign the Palau Pledge on arrival, a promise to respect the environment. Don't touch or kick coral, don't feed fish, and use reef-safe sunscreen. Entry requirements and environmental fees change, so check official sources before you travel.

Who it suits

Advanced Open Water plus drift experience. German Channel and other mild sites are possible for Open Water divers on calm days.

Dive sites

  • Blue CornerReef hook on the wall edge; sharks, wrasse, jacks. AOW + drift experience.
  • German ChannelManta cleaning stations on sand; usually milder current.
  • Ulong ChannelClassic incoming-tide drift over hard coral.
  • Chandelier CaveCavern with air chambers; stalactites.

What you'll see

Grey reef sharksManta cleaning stationsNapoleon wrasseBarracuda and jack schoolsWWII wrecks

Know the risks

  • Strong current
  • Drifting away after unhooking
  • Decompression load on multi-day trips

Sources

Last reviewed 2026-10. Where sources disagree we use the more conservative range.