Praia do Barril

Huge, quiet sandy beach located just west of Tavira. It's a bit of a walk to Praia do Barril from the town but fortunately there is a small train running from Pedras d’El Rei. Barril is a Blue Flag beach so there are plenty of facilities, including seasonal lifeguards. At the far end of the there is an official nudist beach.
Praia de Cacela Velha

The beach of Cacela Velha is located at the eastern end of the Ria Formosa Natural Park and could be considered an extension of neighbouring Manta Rota beach. What marks the start of the beach at Cacela Velha is the wide lagoon behind the spit of sand here.