Slack Water
Philippines · Cebu, Visayas

Malapascua

Dawn dives to watch thresher sharks visit their cleaning stations.

Pelagic thresher shark with its long curved tail swimming in blue water at Kimud Shoal, Malapascua
Photo: Claus Giering / Unsplash (Unsplash License)

At a glance

Best months
March to May for the calmest seas
Water
24–30°CAbout 25°C in January, up to about 29°C in May. 3 mm, or 5 mm in the cooler months
Visibility
10–25 m
Current
ModerateUsually mild to moderate; can pick up on the shoals and around Gato Island
Certification
AdvancedSome sites possible for Open Water
How you dive
Land-based

When to go

March to May for the calmest seas; threshers are seen all year.

Overview

Malapascua is a small island off the northern tip of Cebu in the Philippines. It is famous for pelagic thresher sharks, which rise from deep water in the early morning to be cleaned on Monad Shoal, a seamount a short boat ride from the island. Watching them glide past with their long, curved tails is one of the most distinctive encounters in Asian diving.

The thresher dive is simple in style but not shallow. Boats leave before sunrise, and divers kneel or hover on the plateau at about 25 to 30 metres and wait quietly near the cleaning stations. Advanced Open Water is the usual recommendation, nitrox is widely offered to extend bottom time, and flash photography is not allowed. Many operators also dive Kimud Shoal, where local rules reportedly require less experienced divers to go with a dive professional. Sightings are frequent but never guaranteed.

Away from the sharks, Malapascua has varied easy diving. Gato Island is a marine reserve with a tunnel that cuts through the rock, whitetip reef sharks resting under ledges and plenty of macro. Shallow reef and muck sites close to the island suit newer divers, and the Doña Marilyn ferry wreck offers a deeper dive.

Threshers are seen year-round. March to May usually brings the calmest seas and good visibility, typically 15 to 25 m. The typhoon season runs roughly from July to October and can bring rough surface conditions, reduced visibility and cancelled days, so leave spare days if you travel then. Water is about 25°C in January and around 29°C by May.

Who it suits

Advanced Open Water recommended for Monad Shoal, where divers wait at about 25–30 m. At Kimud Shoal, local rules reportedly let Open Water divers join only with a dive professional.

Dive sites

  • Monad ShoalSeamount with thresher cleaning stations at about 25–30 m; dawn dives, no strobes. Advanced.
  • Kimud ShoalSecond thresher site; local rules reportedly require less experienced divers to go with a pro.
  • Gato IslandMarine reserve with a tunnel through the island, whitetip sharks and macro. Better for experienced divers.
  • Doña Marilyn wreckFerry sunk in a 1988 typhoon, lying to about 32 m; rays and whitetips. Partly salvaged.

What you'll see

Thresher sharks at dawnGato Island tunnel and whitetip reef sharksMacro and muck divingDoña Marilyn wreck

Know the risks

  • Deep dives at dawn; nitrox helps but watch no-decompression limits
  • Typhoon season, roughly July to October
  • Thresher sightings are never guaranteed

Sources

Last reviewed 2026-10. Where sources disagree we use the more conservative range.