From Wikipedia about tourism on Bora Bora:
"Public transport on the island is nonexistent. Rental cars and bicycles are the recommended methods of transport. There are also small, two-seater buggies for hire in Vaitape. It is possible to rent a motorboat to explore the lagoon
Snorkeling and scuba diving in and around the lagoon of Bora Bora are popular activities. Many species of sharks and rays inhabit the surrounding body of water. There are a few dive operators on the island offering manta ray dives and also shark-feeding dives."
Hopefully, he's going snorkeling with the sharks.
Bora Bora is one of the most beautiful places I have ever seen. It is paradise.