Donsol is considered the whale shark capital of the world and is said to have the largest number of sightings of these gentle giants anywhere in the world. Unlike in other countries, these creatures are seen all-year round and are in groups. The only limitation is that they hide when there is a typhoon when the waves would also hamper any snorkeling interaction.
Other Eco-tourism includes firefly watching where you see fireflies gather and cover whole trees in the mangroves. Scuba diving is also available by going to the Manta Bowl in nearby Ticao where manta rays and whale sharks are seen regularly.
Donsol is the most convenient place to stay if you plan to interact with the whalesharks, visit Mayon Volcano and other ecotourism places in Bicol.