- Open Water course
- $660
- Water temperature
- 27–29°C
Updated July 2026
Good to know
Good to Know
- You do not need a liveaboard to dive Palau's most famous sites — Blue Corner, German Channel, Ulong Channel, Blue Holes and Chandelier Cave are all reachable by day boat from Koror, generally 20 minutes to just over an hour each way.
- A liveaboard (or a long day-boat transfer) becomes the practical way to reach the more remote Peleliu-area walls and, especially, far outposts like Helen Reef.
- Currents at signature sites like Blue Corner and Ulong Channel can run strong, so build up drift-diving experience and consider Advanced Open Water certification before your trip.
- November–April is generally the calmest-seas, best-visibility window; July–September can bring more wind and lower visibility but also fewer crowds.
- Palau uses the US Dollar, so course prices quoted by operators are already in USD — no currency conversion needed.
- PADI is the certifying body you'll encounter almost everywhere in Palau; if you specifically want SSI or another agency, confirm directly with the shop before booking.
- Course pricing varies noticeably by operator, group size, and season — get a current quote directly rather than relying on any single published rate sheet.
- If you want a freediving course alongside your scuba training, confirm with the specific shop first — it's offered at some Koror operators but isn't universal across all of them.
- Some liveaboard/resort operations (e.g. Four Seasons Explorer) also run PADI courses onboard, which is a different experience/cost structure than a land-based Koror dive shop.
Dive Sites And Conditions
- Overall Accessibility
- Diving in Palau is predominantly day-boat based out of Koror, not shore diving — there is essentially no walk-in shore diving to the famous sites. The great majority of iconic sites (Blue Corner, Blue Holes, German Channel, Ulong Channel, Chandelier Cave, New Drop-Off, Ngemelis Wall, the harbor-area wrecks) are reached by day boats leaving from Koror-area dive shops, typically 20 minutes to just over an hour each way through the Rock Islands. A liveaboard is not strictly required for a standard 5-10 day trip based in Koror, but it becomes the practical choice for reaching the more remote southern sites around Peleliu efficiently and is the only realistic way to reach far-flung outposts like Helen Reef.
Sites
Blue Corner
- Type
- Wall / plateau drift dive
- Access
- Day boat from Koror
- Best Season
- Year-round; overall calmest seas and best visibility November–April, with July–September sometimes windier and lower-visibility but less crowded
- Marine Life
- Considered Palau's signature dive: a flat plateau dropping into a wall with a constant 'shark parade' of grey reef sharks, plus Napoleon wrasse, schooling barracuda, jacks, snappers, eagle rays, turtles and occasional mantas, hammerheads or whale sharks. Strong currents mean reef hooks are commonly used to hold position and watch the action.
Blue Holes
- Type
- Cavern/cave dive, adjoining drift dive
- Access
- Day boat from Koror; sits directly next to Blue Corner
- Best Season
- Year-round
- Marine Life
- Four vertical shafts drop into a large cavern with sponges, crustaceans, black corals and reef fish; divers typically exit through a 'window' and drift toward Blue Corner, combining a cavern experience with a classic current dive.
German Channel
- Type
- Man-made channel / drift dive
- Access
- Day boat from Koror
- Best Season
- Year-round manta encounters, generally best conditions November–April
- Marine Life
- Palau's premier manta ray cleaning station — a channel dredged during the German colonial era that now funnels nutrient-rich water in from the open ocean, drawing manta rays, reef sharks, occasional whale sharks and hammerheads, plus schools of fusiliers, snappers and jacks.
Ulong Channel
- Type
- Shallow drift dive through a reef channel
- Access
- Day boat from Koror
- Best Season
- Year-round; best visibility November–April
- Marine Life
- A shallow (max ~13m) sandy channel known for the 'Ulong Squeeze' current feature, coral gardens with cabbage corals and sea fans, schooling triggerfish and groupers, reef sharks and eagle rays — widely cited by operators as one of the most enjoyable and photogenic drift dives in Palau.
Peleliu Express / Peleliu Corner / Peleliu Wall / Yellow Wall
- Type
- Wall and drift dives
- Access
- Remote relative to Koror — a long boat transfer (roughly 1.5–2+ hours) or reached via liveaboard; considered one of the harder-to-reach dive areas and often saved for later in a trip once divers are experienced
- Best Season
- Year-round, though currents and conditions are strongest and most variable; calmer window November–April
- Marine Life
- Dramatic current-swept walls near historic Peleliu Island with grey reef sharks, whitetip and occasional hammerhead and silvertip sharks, bumphead parrotfish, Napoleon wrasse and large schools of jacks; also near WWII wreck sites.
Siaes Tunnel
- Type
- Cavern/tunnel dive
- Access
- Day boat from Koror, but relatively far (~17 miles west of Koror) — a longer boat ride than most sites
- Best Season
- Year-round
- Marine Life
- A large cavern with multiple reef-wall openings and a floor around 45m before a sheer wall drop; suited to intermediate/advanced divers; frequently combined with Blue Holes and Blue Corner in a single dive plan.
New Drop-Off
- Type
- Wall / plateau dive
- Access
- Day boat from Koror
- Best Season
- Best in low-current conditions; year-round
- Marine Life
- Two reef walls meet at a plateau before a sheer drop-off; schooling blue-stripe snappers, Napoleon wrasse, barracuda, spotted eagle rays, angelfish, reef sharks and green turtles; notable for boat traffic overhead so safety sausages are advised.
Ngemelis Wall (Big Drop-Off)
- Type
- Wall dive
- Access
- Day boat from Koror
- Best Season
- Year-round
- Marine Life
- Regarded as one of the world's best wall dives, starting in knee-deep water before plunging near-vertically; sponges, soft corals, large sea fans and giant black coral trees, with a WWII-era chain-and-sphere relic near the mooring buoy.
Chandelier Cave
- Type
- Freshwater-filled cave system
- Access
- Day boat, very close to Koror (Malakal Island) — among the shortest boat rides of any major site
- Best Season
- Year-round
- Marine Life
- Not a marine-life site but a geological dive: four submerged chambers plus a fifth air-filled chamber where divers can surface to see stalactites and stalagmites by torchlight; requires guided, careful buoyancy control in overhead sections.
Iro Maru
- Type
- WWII wreck dive
- Access
- Day boat from Koror, close to the harbor area
- Best Season
- Year-round
- Marine Life
- A sunken WWII Japanese cargo ship standing upright, now encrusted in hard and soft corals with schools of jacks, anemones, nudibranchs and typical wreck-associated reef fish.
Jake Seaplane
- Type
- WWII wreck dive (shallow)
- Access
- Day boat from Koror, shallow and easy
- Best Season
- Year-round
- Marine Life
- An intact Japanese Aichi E13A floatplane resting on a sandy bottom in shallow water — good for wreck photography without deep penetration.
Wonder Channel
- Type
- Shallow wall dive
- Access
- Day boat, within the Rock Islands
- Best Season
- Year-round
- Marine Life
- A calmer dive with soft corals, pipefish, crabs and a notable variety of nudibranchs.
Ngedebus & Ngerchong Reefs
- Type
- Hard coral reef dive
- Access
- Day boat from Koror
- Best Season
- Year-round
- Marine Life
- Extensive hard coral formations with turtles, cuttlefish and large numbers of reef fish and anemones.
Helen Reef
- Type
- Remote atoll reef
- Access
- Liveaboard/long-range expedition only — far south of the main Rock Islands and not reachable on standard day boats
- Best Season
- Weather-dependent long-range window, generally within the calmer November–April period
- Marine Life
- Pristine, largely uncrowded reef offered on select long-range liveaboard itineraries.
General Conditions
- Visibility
- Often exceeds 30m in the November–April season; can drop with wind and swell July–September
- Diver Level
- Palau is best suited to intermediate and advanced divers comfortable with strong currents and drift diving; reef hooks are standard equipment at current-heavy sites like Blue Corner, German Channel and Ulong Channel. A handful of sites (Blue Holes, Ulong Channel in calm conditions, Jake Seaplane) are gentler and workable for less experienced divers with a guide.
- Water Temperature
- Roughly 27–29°C year-round
Certifying Bodies And Levels
- Evidence
- Niu's Tour Palau explicitly advertises courses from Open Water through Divemaster, plus specialties like nitrox, deep diving, side-mount, drysuit and underwater photography. Sam's Tours (a PADI Five-Star IDC Facility) offers a full range of PADI recreational and technical diving courses, including trimix and rebreather (CCR) services.
- Dominant Body
- PADI
Levels Commonly Offered
- Discover Scuba Diving (intro, no certification)
- PADI Open Water Diver
- PADI Advanced Open Water Diver
- PADI specialty courses (Nitrox/Enriched Air, Deep, Night, Wreck, Drift, Navigation, Underwater Photography, Side-mount, Drysuit)
- PADI Divemaster
- Technical/tec diving (trimix, rebreather) at at least one operator
Operator Density
- Caveat
- PADI's own directory lists multiple additional dive shops operating in Palau beyond the three confirmed by name here; a full, exact operator count was not independently re-verified at the time of research.
- Assessment
- Koror/Malakal (Palau's dive hub) has a genuinely dense cluster of named, PADI-affiliated dive operators — this is one of the reasons Palau is a globally known dive destination rather than a niche one.
Confirmed Named Operators This Session
- Sam's Tours (Sam's Dive Tours) — Malakal Harbor, Koror; PADI Five-Star IDC Facility
- Niu's Tour Palau — Malakal, Koror; PADI 5-Star IDC Resort
- Palau Diving Center — Koror
Typical Cost
- Open Water Course
- $660
- Advanced Open Water Course
- $450
- Notes
- Palau's official currency is the US Dollar, so no conversion is needed. These figures come from one Koror-based operator's published rate sheet; other operators' current pricing was not independently confirmed at the time of research, so treat these as an indicative reference point rather than a market-wide average.
Freediving Crossover
- Caveat
- This crossover was confirmed at one specific operator, not established as a Palau-wide norm across all dive shops.
- Detail
- At least one Koror dive resort (Niu's Tour Palau) explicitly lists PADI Freediving and PADI Mermaid courses alongside its scuba program, indicating a real crossover offering rather than an assumption.
- Genuine Crossover Found
- Yes
AI-generated estimateData refreshed July 2026
This section has no cited sources.
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Data last updated July 2026 · Verify anything important.