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National park · Palau

Rock Islands

Visit the Rock Islands on a day trip from Koror: pay the $10 USD entry fee, take a 30‑45 min boat from Koror, hike the Ulong trail (2 km (1.2 mi), easy) in the morning, snorkel the lagoons in the afternoon, and stay overnight in Koror.

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Source checked
A source and a date are on record: we read it from an official or published page. Not yet confirmed on the ground.
Field checked
Someone checked it on the ground, with the date shown.
Plan calculated
Worked out by Voykit from its own data (times, distances, budgets). A calculation, not a measurement.

Unknown times stay unknown. How we verify

UNESCO World Heritage 2012Some areas permit-onlyChecked Sep 2026
More
Map to the park
Directions

Add your hotel to get directions from it. · stays in this browser; shared with the pocket card.

Area

100 km² (39 sq mi)

approximate

Established

2012

Best months

Nov–May

UNESCO

World Heritage

Rules in force · 7
  • Oceania ↗Oceania's island states guard their farms and reefs at the border: tick 'yes' on the arrival card for any food, plant, animal product, soil or used outdoor gear, and let the officer decide.
  • Oceania ↗Across the tropical South Pacific, cyclones are possible from November to April: choose insurance that covers weather delays and keep one spare night before a long-haul departure.
  • Micronesia ↗Micronesia runs on a handful of weekly flights, so one cancellation can cost several days: build slack into every connection between islands.
  • Palau ↗Entry rules are Palau's own, not US rules: check the Palau Bureau of Immigration or a Palau embassy for your passport before booking.
  • Palau ↗You sign the Palau Pledge (a promise to protect the environment) in your passport on arrival; the pledge is enforced by law.
  • Palau ↗Reef-toxic sunscreens are banned and can be confiscated: bring reef-safe sunscreen and a rash vest.
  • Palau ↗The Rock Islands Southern Lagoon needs a permit (sold by tour operators); Jellyfish Lake opens or closes depending on jellyfish numbers.

At a glance

Country
Palau
Area
100 km² (39 sq mi)
Approx. 100 km² of coral reef and limestone islands (check).
Established
2012
Best months
Nov–May
Permits
For some areas
Base
Koror

The Rock Islands are a UNESCO World Heritage archipelago of about 300 mostly uninhabited limestone islands and reefs, renowned for clear lagoons, coral diving and short jungle hikes.

Decide

Why go, which months, and what lives here when

At a glance

Status

  • UNESCO World Heritage · 2012Mixed cultural and natural site.

Size and age

100 km² (39 sq mi) · national park since 2012

Approx. 100 km² of coral reef and limestone islands (check).

This page covers the park itself. Nearest base: Koror.

Why go

  • Snorkel crystal‑clear lagoons and see abundant coral reefs.
  • Explore short hikes on limestone islands with jungle views.

When to go

12-month verdict
  1. JanBest
  2. FebBest
  3. MarBest
  4. AprBest
  5. MayBest
  6. JunAvoid
  7. JulAvoid
  8. AugAvoid
  9. SepAvoid
  10. OctAvoid
  11. NovBest
  12. DecBest
  • JanDry, calm seas.
  • FebDry, calm seas.
  • MarDry, calm seas.
  • AprDry, calm seas.
  • MayDry, calm seas.
  • JunRainier, rougher seas.
  • JulRainier, rougher seas.
  • AugRainier, rougher seas.
  • SepRainier, rougher seas.
  • OctRainier, rougher seas.
  • NovDry, calm seas.
  • DecDry, calm seas.

Wildlife and nature calendar

Seasons shift by weeks each year
Wildlife and nature calendar for Rock Islands
WhatJanFebMarAprMayJunJulAugSepOctNovDec
Reef fish and coralsAll yearyesyesyesyesyesyesyesyesyesyesyesyes
Sea turtles (nesting on some beaches)May–Sepnonononoyesyesyesyesyesnonono

Arrive & move

Getting in, how the park is divided, and where things are

Show 3 sectionsHideHow to get there, Zones and sectors, Sketch map

How to get there

Zones and sectors

Zones of Rock Islands
ZoneWhat is thereAccess
Carp IslandMain entry gate, small resort, boat dock, and short trails.Open with entry fee.
Ulong IslandLimestone peak with a 2 km (1.2 mi) loop trail and a beach.Reachable by boat from Carp Island.
Designated campsitesCampsites such as Peninsula Camp, Ngchus, and Giant Clam Beach with outhouses.Camping allowed only at listed sites.

Sketch map

Approximate — not for navigation
Sketch map of 3 approximate points in Rock Islands, north up123
Coordinates approximate; main entry is at Carp Island.
  1. 1Koror harbor · Town≈7.336, 134.475Map ↗
  2. 2Carp Island gate · Gate≈7.166, 134.300Map ↗
  3. 3Ulong Island viewpoint · Viewpoint≈7.150, 134.310Map ↗

Take the points offline

GPX waypoints · approximate

3 points as a GPX waypoint file, plus a plain-text list of coordinates. Save it while you have signal: maps apps show the points without a connection.

Coordinates approximate; main entry is at Carp Island.

See & do

Caves, trails and wildlife, with how hard each is and whether it needs booking

Show Top experiencesHide

Top experiences

TrailsEasy2–3 hUlong TrailShort loop with jungle and sea views; suitable for most walkers.
Boat tripsEasyHalf daySnorkelling in lagoonsClear water, abundant coral and reef fish.
CultureEasyHalf dayCarp Island ResortFood, drinks and basic accommodation on the largest inhabited island.

Practical

Fees, permits, rules, where to sleep and what can go wrong

Show 8 sectionsHideEntry fees and permits, Park rules, Where to stay, Safety, Accessibility, Visiting lightly, Questions people ask, Related

Entry fees and permits

USD ranges · check
Fees for Rock Islands
ItemRangePerNote
Park entryUS$10personCollected by boat operators or at the Carp Island gate (check).

Ranges, not quotes: fees change without notice. Check with the park or your operator · checked Sep 2026.

Park entry permit or guide

Paid to the boat operator or at the Carp Island entrance.

Park rules

Drones, guides, camping and more
Fires
Not allowed on any island; use designated cooking facilities at campsites.
Camping
Only in listed campsites; no wild camping.
Litter
Pack out all waste; bins are limited.
Water
Bring all fresh water; no natural sources are reliable.

Where to stay

In the park

Carp Island Resort

Simple rooms and a restaurant on the main inhabited island.

Near the park

Koror

Hotels, hostels and guesthouses; 30 min boat ride to the islands.

Safety

Sun exposure high

Use reef‑safe sunscreen (SPF 30), wear a hat, and stay hydrated.

Dehydration medium

Carry enough fresh water for the whole day; refill only at official points.

Rough seas medium

Check weather forecasts; avoid boat trips in high winds.

How much daylight do you have?

computed for this spot

Time out

Finding the local time zone…

Times are local to the spot (zone loading). The half-hour margin is our rule of thumb, not an official figure; light fades earlier in forest or under cloud. Carry a headlamp on any route that could run late.

Accessibility

  • Carp Island dock reachable by boat; short walks are level.
  • Trails involve uneven ground and stairs; not suitable for limited mobility.

Visiting lightly

  • Bring reusable water bottles; refill at the Carp Island dock.
  • Use reef‑safe sunscreen and avoid touching corals.
  • Camp only in designated sites and use provided outhouses.

Questions people ask

How much does it cost to enter Rock Islands?

The entry fee is US $10 per person, paid to the boat operator or at the Carp Island gate.

What are the best hikes in Rock Islands?

The Ulong Trail on Ulong Island is a short 2 km loop (easy). Other short walks are available on Carp Island near the resort.

When is the best time to visit Rock Islands?

The dry season from November to May offers calm seas and clear water; avoid the rainy months June‑October.

Can I camp on the Rock Islands?

Camping is allowed only at designated campsites such as Peninsula Camp; wild camping is prohibited.

Do I need to bring fresh water?

Yes, bring all drinking water you need; there are no reliable natural sources on the islands.

Deep dive

Every source; fees and rules change, so check before you go

Show the detailsHide

Ask about Rock Islands

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