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Micronesia / Western Pacific
One of the most pristine and protected marine environments on Earth, set in a landscape of mushroom-shaped limestone islands draped in jungle. Koror is a small town with decent infrastructure; all diving is by boat from there. Palau moves at its own pace, it demands effort to reach, and rewards that effort completely. The Palau Pledge signed at the airport sets the tone: this is a place that takes its own conservation seriously.
Open Water minimum. Advanced OW strongly recommended. Blue Corner requires current hook technique and ability to hold station in strong flow. Blue Holes dive to 30+ m in current. Nearest hyperbaric chamber is in Koror (Belau National Hospital). All visitors must sign the Palau Pledge (conservation commitment) on arrival. A Jellyfish Lake permit is required (~$100 USD/person, included in most dive packages).
Current is the defining feature of Palau's best sites. Blue Corner in particular runs fast, requiring current hooks. Many sites are drift dives; others in the Rock Islands lagoon are calm and sheltered. Warm water year-round; visibility outstanding in the dry season.
Oct–May is the dry season with calmer seas and best visibility. Nov–Apr is peak: excellent conditions, best shark aggregations at Blue Corner. Jun–Sep is the wet season, diving continues but some days are cancelled due to weather, and visibility can drop. The Rock Islands and Jellyfish Lake are accessible year-round.
Palau has been a shark sanctuary since 2009, no fishing, no finning, and the results are visible on every dive. Blue Corner concentrates grey reef sharks, whitetip reef sharks, and Napoleon wrasse in current-swept aggregations that can number in the hundreds. The German Channel draws manta rays to a cleaning station visited for decades. Jellyfish Lake holds millions of golden jellyfish that have lost their sting through evolution, swimming through them is one of diving's most surreal experiences. WWII wreck sites add an entirely different dimension.
Terrain
Blue Corner shark aggregations in the current tip are among the densest in the world.
German Channel has a reliable year-round manta cleaning station.
Millions of non-stinging golden jellyfish in a marine lake, snorkel-only, unique on Earth.
Schools of 50–100+ at dawn feeding on coral, audible from 20 m away.
Japanese Zero fighter planes, Helmet Wreck, and more from Operation Desecrate One (1944).
Enormous, habituated Napoleon wrasse are resident at Blue Corner and Blue Holes.
Depth10–35 m
Palau's most famous dive, a current-swept reef tip where shark and Napoleon wrasse aggregations reach extraordinary densities. Current hook required; deploy on the incoming tide.
Depth5–30 m
A colonial-era cut through the reef that became a permanent manta cleaning station. Mantas arrive from open ocean and hover at the cleaning heads, multiple animals, close approach.
Depth0–15 m
Marine lake with millions of non-stinging golden jellyfish migrating daily with the sun. Scuba prohibited, snorkel through the pulsing mass for one of the world's most unique wildlife experiences.
Depth5–32 m
Four vertical shafts descending into a cathedral cavern at 30 m, with light beaming through the openings. Sharks visible in open blue beyond the exit. One of diving's great visual experiences.
Depth15–40 m
Palau's most powerful current site, the open Pacific pushes through the reef tip and concentrates an extraordinary volume of pelagic life. For experienced drift divers who know what they're doing.
Fly to Roman Tmetuchl International Airport (ROR), Koror, connections via Guam, Tokyo (Narita), Manila, and Taipei. No direct flights from Europe or the US mainland; most visitors transit Tokyo or Guam. Allow time for connections. Palau is genuinely remote. The airport is on Babeldaob island; Koror is connected by bridge (15 min drive).
Open Water minimum. Advanced OW strongly recommended. Blue Corner requires current hook technique and ability to hold station in strong flow. Blue Holes dive to 30+ m in current. Nearest hyperbaric chamber is in Koror (Belau National Hospital). All visitors must sign the Palau Pledge (conservation commitment) on arrival. A Jellyfish Lake permit is required (~$100 USD/person, included in most dive packages).
Koror is a functional small city. ATMs (USD is the official currency), supermarkets, a hospital, and decent accommodation. Outside Koror, facilities are minimal. Power is reliable in Koror; water is drinkable there (check elsewhere). Most dive operators are based on the waterfront near the main boat dock.
4G coverage in Koror and surrounding areas via Palau Telecoms. WiFi at most hotels and dive shops. Remote dive sites and outer islands have no signal. An international SIM or local Palauan SIM is recommended; some US carriers roam here.
Hyperbaric chamber at Belau National Hospital in Koror. Evacuation from remote Rock Islands sites is by boat (30–60 min). Blue Corner's current is the main risk, never dive it without current hook experience and a guide who knows the site. The Palau Pledge is legally binding; coral-touching violations carry fines. Sunscreen is banned in Jellyfish Lake and the marine protected areas, bring reef-safe sun protection.
Nov–Apr books out fast, particularly Christmas/New Year and February half-term. Good guesthouses near the waterfront fill 2–3 months ahead. Wet season (Jun–Sep) is cheaper and quieter but some sites are weather-dependent. The Jellyfish Lake permit ($100/person) applies year-round.
Conditions and operator availability change. Always verify locally before booking.
Palau is rated "Intermediate". Open Water minimum. Advanced OW strongly recommended. Blue Corner requires current hook technique and ability to hold station in strong flow. Blue Holes dive to 30+ m in current. Nearest hyperbaric chamber is in Koror (Belau National Hospital). All visitors must sign the Palau Pledge (conservation commitment) on arrival. A Jellyfish Lake permit is required (~$100 USD/person, included in most dive packages).
The best months are Oct, Nov, Dec, Jan, Feb, Mar, Apr. Oct–May is the dry season with calmer seas and best visibility. Nov–Apr is peak: excellent conditions, best shark aggregations at Blue Corner. Jun–Sep is the wet season, diving continues but some days are cancelled due to weather, and visibility can drop. The Rock Islands and Jellyfish Lake are accessible year-round.
Divers come to Palau for Grey reef & whitetip sharks, Reef & oceanic mantas, Golden jellyfish (Jellyfish Lake), Bumphead parrotfish, WWII wrecks and aircraft, Napoleon wrasse. Current is the defining feature of Palau's best sites. Blue Corner in particular runs fast, requiring current hooks. Many sites are drift dives; others in the Rock Islands lagoon are calm and sheltered. Warm water year-round; visibility outstanding in the dry season.