A 'mirador' is literally a 'looking place' and they are built all over Spain where there are beautiful views. This one is at the west end of Salinas beach and is also an anchor museum dedicated to Philippe Cousteau (son of Jacques), who died in a seaplane accident in 1999. That's his bust on the rock in photo 5. The plaque explains that the anchor belonged to a galleon that sank off Florida in 1622 on its maiden voyage and was recovered by Mel Fisher three centuries later. This anchor was then presented to Aviles (San Agustine's sister city) in 1999.