Schooling jacks above Tubbataha's North Atoll wall
Sulu Sea

Tubbataha Reef: The Philippines' Crown Jewel

Marcus Thorne·April 14, 2026·10 min read

Open just three months a year and reachable only by liveaboard, Tubbataha is the cleanest, sharkiest and most strictly protected reef in Southeast Asia.

Tubbataha Reefs Natural Park, a UNESCO World Heritage site since 1993, sits 150 km from the nearest landmass in the middle of the Sulu Sea. There are no resorts, no anchoring, no fishing — and consequently, an apex-predator population that elsewhere is now a memory.

A three-month window

Diving Tubbataha is only possible from mid-March to mid-June, when the Sulu Sea is calm. Outside this window the seas are too rough for safe operations.

Sharks, walls and pelagics

Grey reef sharks in dozens, white-tips on every dive, hammerheads on the deeper drops, occasional tigers, manta cleaning stations on the South Atoll, and walls dropping past 100 m carpeted in untouched hard and soft coral.

Bird Islet — a tiny sand cay on the northern atoll — is also one of the most important seabird breeding sites in the region.

Logistics

All trips depart from Puerto Princesa, Palawan. Standard itineraries are 6 nights / 7 days. Park fees and conservation contributions are mandatory and worth every peso — they fund the rangers who keep this reef the way it is.

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Frequently asked questions

What level is required?+

Advanced Open Water minimum, 50+ dives strongly recommended. Nitrox certification is essential for back-to-back wall dives.

Can I see whale sharks?+

Occasionally — Tubbataha is more about reef sharks and walls. For reliable whale shark encounters, head to Donsol or Oslob.

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