Situated on Santa Cruz Island of the Ecuadorian Galapagos Islands, the tourist town of Puerto Ayora is famous for its striking natural scenery, breathtaking beaches, and unique history. As the biggest town in the archipelago, it is from here that many excellent cruises, diving expeditions and land-based tours depart. Tortuga Bay, which rivals any South American beach, is perfect for swimming and sunbathing and also offers the chance to spot sharks, marine iguanas, pelicans, and the occasional flamingo; while the Charles Darwin Research Station is home to giant tortoises. Lava tunnels and two idyllic lagoons provide further opportunities to explore.