LEGAZPI CITY, Philippines — The annual whale shark interaction season has officially begun in Donsol, Sorsogon, as the “gentle giants” return to the nutrient-rich waters of Donsol Bay. On March 7, 2026, local officials and conservationists confirmed that sightings have picked up, marking the start of the region’s premier eco-tourism draw.
- Peak Period: While whale sharks are present from November to June, the peak season runs from March to May, coinciding with high plankton density.
- Current Data: The World Wide Fund for Nature (WWF) Philippines reported eight sightings in Donsol since early February. In 2025, the area documented 64 distinct sightings (34 new individuals and 30 resightings).
- Population Milestone: Since monitoring began in 2007, a total of 1,506 whale sharks have been identified in Donsol using unique spot patterns, which act like human fingerprints.
To protect the endangered species, the local government and WWF-Philippines are strictly enforcing a natural interaction policy. Unlike other destinations, Donsol prohibits baiting or feeding the animals.
- No-Feeding Policy: Feeding disrupts migratory patterns and can negatively impact the sharks’ long-term health and growth.
- Distance Rule: Swimmers must maintain a 4-meter distance from the shark’s head and tail.
- Boat Limits: To reduce stress on the animals, only one boat is allowed per shark, with a recommended limit of 3 to 4 passengers per interaction.
- Chemical Bans: Tourists are advised against wearing sunscreen or lotions that contain chemicals before entering the water.
Donsol Bay is part of the Ticao-Burias Pass Protected Seascape, the Philippines’ second-largest marine protected area. The abundance of plankton from the Donsol River makes the bay an ideal feeding ground. Conservationists noted that while historical sightings have fluctuated—dropping as low as 43 in 2023—the numbers have shown signs of recovery over the last two years.