A turquoise lagoon framed by jagged limestone karst peaks on Coron Island in northern Palawan.

Coral Triangle · Philippines

Coron

WWII Japanese wrecks sit largely intact in a limestone-karst bay.

Photo: Ray in Manila · CC BY 2.0

Coron Bay in northern Palawan holds a cluster of Japanese naval and support vessels sunk by American air raids in September 1944, several now sitting upright and largely intact between 10 and 40 meters. Wrecks like the Irako and Akitsushima are encrusted in coral and swum through by trained wreck divers, while nearby Barracuda Lake offers a freshwater-over-saltwater cavern dive with sharp thermoclines. Coron town itself sits on limestone karst similar to Palawan's better-known El Nido.

About diving in Coron

Everything here runs from a boat. Wooden outriggers leave in the morning loaded with tanks and a cook, spend the day moving between moorings scattered around the bay and the islands off Busuanga's south coast, and serve lunch on deck between dives. Two or three dives is a normal day, and because the crossings take real time, operators tend to pick one cluster of sites and stay in that direction rather than criss-crossing the bay.

The water is the first surprise. This is a shallow, silty bay rather than open ocean, so light falls away fast once you are inside a hull, torches are standard rather than optional, and one careless fin stroke can put a compartment out of use for everyone behind you. The ships lie at different attitudes, some square and upright, others heeled well over, which changes how a passage reads, and the growth over the upper structures blurs the outlines rather than clarifying them.

Two things stand out beyond the hulls. Barracuda Lake is reached by climbing a short, sharp limestone ridge from the boat with your gear already on, and pays for it with fissured rock walls dropping into haze and water below the thermocline warm enough to feel like a bath; despite the name, very little lives in it. The other is the history, which is less settled than it looks: several of these ships were dived for decades under names that were later questioned or reassigned.

Coron suits divers who came for structure and are happy to spend a week on it. It is a sensible place to take wreck training, since one bay holds both easy hulls to learn on and bigger ships to use the skills on afterwards, and sidemount is common for the tighter passages. Anyone chasing reef colour or open-water fish will find the bay limited; the shallow coral sites fill an afternoon well enough, but they are not why people come.

When to dive Coron

Month-by-month season rating for Coron
JanFebMarAprMayJunJulAugSepOctNovDec
PrimePrimePrimePrimeGoodFairFairFairFairFairGoodPrime

November–May dry season gives the clearest water; June–October brings more rain and swell.

Getting there

Flights from Manila and Cebu land at Busuanga's airport, a van ride from Coron town on the same island, and ferries run in from El Nido and Manila. All diving is by day boat from the town or an outlying island resort, with no shore entries, so settle on the operator before fixing where you sleep.

Wildlife calendar

The wrecks are the habitat: grouper hold in the holds, batfish and clouds of small reef fish hang over the superstructure, and nudibranchs work the growth on the plating. Barracuda and jacks pass across the shallower hulls and the coral sites, and are easiest to pick out from December through April, when the bay is at its clearest.

Dive types & marine life

  • Wreck
  • Reef
  • Cave & cavern
  • Barracuda
  • Groupers
  • Trevally & jacks
  • Reef fish swarms
  • Nudibranchs

Notable dive sites in Coron

  • Irako Wreck

    Deep, largely intact refrigeration ship popular with wreck divers.

  • Akitsushima Wreck

    Seaplane tender sunk by air raid, its crane still visible.

  • Barracuda Lake

    Freshwater-topped lake dive with sharp thermoclines.

  • East Tangat Wreck

    Shallow gunboat wreck suited to less experienced divers.

Photos from Coron

  • dcpetit · CC BY-SA 2.0

  • lolay · CC BY 2.0

Dive videos

Philippines COLOSSAL Shipwrecks Coron Bay - (found artifacts, guns, ammunition) 8k Ultra HD · FinnSnow on YouTube

Diving WWII Shipwrecks in Coron Philippines | 5 Epic Wrecks in Three Days · Seb Goes Deep on YouTube

Photo credits

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