Tavira Island (Portuguese: Ilha de Tavira) lies south of the town of Tavira, Portugal, just a few hundred metres off the coast. It is 11 kilometres long and varies between 150 m to 1 km in width. The island has 11 km of the best beaches in the Algarve, including areas where naturism can be legally practised. It is part of the Natural reserve of Ria Formosa. It is also popular among tourists, people that like to swim and bird watchers. Access to the island is by ferry from Quatro Águas, southeast of the city of Tavira, and also by a small floating bridge in the Santa Luzia/Pedras d'El Rei area, followed by a small train trip (operating during the summer months) or by foot in a footpath parallel to the railway line (c. 2 km).