October through April that's prime whale watching season in the Virgin Islands. Whales travel near buck island and french cap south of  St. Thomas. Whether you will see wales really depends on how close to shore the whales swim this year. Humpback whales are the most commonly seen in local waters. Adult humpback whales are approximately 35 to 50 feet long and can weigh up to 65 tons.  Besides humpback whales you can some times spot pilot whale and  even the occasional sperm whale . Whales travel to South America through the Caribbean to give birth. They pass back through St. Thomas on their way back north. The calves spend their first few months of life in the warm waters of the Caribbean, building up a layer of blubber that will keep them warm in colder waters. Come Whale Whatching with us on Tribal.