Fiery orange sunset over the tidal flats of Donsol Bay with a fishing boat silhouetted on the shore

Coral Triangle · Philippines

Donsol & Ticao Pass

Community-run whale shark tourism, and mantas queueing in Ticao Pass

Photo: AwOiSoAk KaOsIoWa · CC BY-SA 3.0

Donsol built the template for community-run whale shark tourism: strictly regulated, snorkel-only, with spotters guiding small boats onto animals feeding in plankton-rich water off the Sorsogon coast. Sightings are seasonal and never guaranteed, but in a good year the bay holds dozens. An hour away, Ticao Pass funnels current between islands across the Manta Bowl, a shallow cleaning station where reef mantas queue up and thresher sharks occasionally appear.

About diving in Donsol & Ticao Pass

A Donsol morning is organised on land long before anyone gets wet. Trips are registered at the town's visitor centre, everyone sits through the interaction briefing, and boats go out with a spotter up top and a Butanding Interaction Officer aboard to hold people to the rules: no touching, no crowding, no dropping down onto the animal. The boat then patrols, sometimes for hours. When a shark is found a small group slips into the water ahead of it, swims for as long as the encounter lasts, and climbs back aboard to look for the next.

Ticao is a different discipline. The pass is a tidal channel between Ticao Island and the Bicol mainland, and the volume of water moving through it is what the cleaning stations run on, so dives are timed to the tide rather than to the day's schedule. The pattern is a fast negative descent, a spell parked on one patch of low reef watching the blue, then letting go and drifting off. There is little scenery to fall back on; the interest is in what passes.

Both halves run on the same water. The plankton that draws sharks into the bay and keeps the pass productive is also why visibility can fall to five metres or less exactly when the animals are thickest on the ground. Divers arriving from clear-water reef destinations find that trade hard to accept, and it is worth understanding before booking rather than after. Nothing about the region rewards a tight itinerary or a single-day visit.

It suits patient divers who are comfortable being moved around by water and who will accept a handful of encounters from a week rather than a full logbook. It is a poor fit for anyone who needs a guaranteed sighting, and a poor fit for a first tropical trip. Most people build in slack days and treat the bay and the pass as two separate gambles rather than one itinerary, since either can be blanked by weather, current or plain absence.

When to dive Donsol & Ticao Pass

Month-by-month season rating for Donsol & Ticao Pass
JanFebMarAprMayJunJulAugSepOctNovDec
GoodPrimePrimePrimePrimeGoodFairFairFairFairGoodGood

Whale sharks are in Donsol Nov–Jun, peaking Feb–May; manta activity at the Bowl follows a similar window before typhoon season.

Getting there

Legazpi is the usual arrival airport, about an hour and a half by road from Donsol town, where whale shark trips are registered at the community-run visitor centre. Ticao Pass is a long open-boat run from Donsol, so divers focused on the Bowl usually stay at a lodge on Ticao Island and let it handle the transfer. Everything here is day-boat.

Wildlife calendar

Whale sharks are in the bay from roughly November to June, with the best odds February to May; manta activity over the Bowl follows much the same window, with mobulas alongside them and threshers an occasional bonus rather than a target. Jacks, barracuda, turtles and reef sharks hold on the pass and the sheltered reefs whenever conditions allow them to be dived.

Dive types & marine life

  • Pelagic & blue water
  • Drift
  • Reef
  • Muck & macro
  • Whale sharks
  • Manta rays
  • Thresher sharks
  • Reef sharks
  • Mobula rays
  • Trevally & jacks
  • Sea turtles
  • Barracuda

Notable dive sites in Donsol & Ticao Pass

  • Manta Bowl

    Shallow cleaning station at 20 m, swept by current, with reef mantas.

  • Donsol Bay

    Plankton-rich bay where whale sharks feed; snorkel interaction only.

  • Ticao Pass

    Channel drift between islands with strong current and passing pelagics.

  • San Miguel Island

    Sheltered reef used as an alternative when the pass is unworkable.

Photos from Donsol & Ticao Pass

  • jackylim · CC BY-SA 3.0

Dive videos

Philippines : Scuba diving in Donsol and Ticao · Laurent Guigue on YouTube

Diving Ticao Island 2023 (GoPro11, 5.3K) · Jamie Turner on YouTube

Photo credits

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