Photo: @iurisenaPiscina Natural da Praia da Conceição
It sits on the right-hand rocks of Conceição beach, about 100 meters from the sand. The pool forms between the rocks and shows up at low tide. You can get there over the rocks, carefully, because many are slippery and some are loose, or by sea on a calm day, following the rocks. Along that stretch the water usually reaches your navel, but some spots are deeper. Anyone who cannot swim should not go by sea. Go when the sea is very calm and follow the lifeguards' instructions.