Toten Island — now officially called Tanga Island — lies just inside the mouth of Tanga Bay, a low forested island home to the ruins of a medieval Shirazi mosque and tombs, a small population of vervet monkeys, and a wide range of birdlife. The reef around the island is mostly intact and good for snorkelling, particularly along the southern shore.
Visit by hiring a boat from the harbour or the yacht club; agree a price for the round trip and pickup time before leaving. The crossing takes around twenty minutes. The island is a protected reserve, so bring nothing in and leave nothing behind.