I'm sorry for the misunderstanding, but it seems there is a misconception in your request. Tordesillas is a town located in the province of Valladolid, Castile and Leon, Spain, and it is not known for its beaches as it is inland and not near the coast. Consequently, there isn't a beach in Tordesillas named "Playa Tordesillas" to describe in terms of sand color, length, amenities, and beach activities such as those typically found on coastal beaches. Tordesillas is more famous for its historical significance, like the Treaty of Tordesillas in 1494, which divided the newly discovered lands outside Europe between Portugal and Spain.