Yes, it's possible to see other types of sharks during snorkelling tours with Three Islands Whale Shark Dive, but it's not guaranteed and will depend on various factors. Some species that you may see include:
Reef sharks: The most common types you might encounter are grey reef sharks, blacktip reef sharks, and whitetip reef sharks. These are small- to medium-sized sharks known for their docile nature and are generally not a threat to humans.
Pelagic sharks: Occasional sightings of larger, open-water species like oceanic whitetip sharks or silvertip sharks are also possible, though less frequent.