Robben Island is located in Table Bay, just off the coast of Cape Town, South Africa. The island is a UNESCO World Heritage Site renowned for its profound historical significance. Notably, the attraction is known for the prison where Nelson Mandela was held for 18 of his 27 years of imprisonment. Visitors can explore the prison museum, take guided tours led by former inmates, and learn about the island's rich history and its role in South Africa's journey to democracy.