It is via a maze of red rocks sculpted by the sea ( comprised of 134 steps ) that you will reach the marine site of Algar Seco, situated below Cape Carvoeiro. You will notice the gaping porches of several half-submerged grottoes. On the right there is a small tunnel leading to a cavern whose natural openings offer wonderful views of the western cliffs. On the left, a path leads to a promontory where you can see the entrance to a deep underwater grotto.