Martin then travels onto Rangiroa where, accompanied by a guide, he swims in the ‘aquarium’ in Rangiroa Lagoon before heading to Shark City to swim with blacktip reef sharks. Finally, Martin visits Tetiaroa, an atoll trying to improve its environment thanks to Hollywood star Marlon Brando. “Marlon Brando bought the island in 1966. He had a dream, and the dream was to fund environmental and scientific programmes by tourism. He was before his time in lots of things,” explains Frank Murphy, Executive Director of the Tetiaroa Society.