Prainha is a small, shell-shaped beach framed by scenic rock formations that are deeply eroded due to the action of both fresh and salt water. Other beaches follow on from Prainha in an easterly direction, some accessible only at low tide, and you will see plenty of the typical features of these cliffs: arches, caves, rocky ledges and sinkholes. You are advised to be cautious when exploring the nooks and crannies among the rock formations, since falling stones are common. These same rocks shelter a wealth of colourful underwater marine life and these bays are excellent spots for diving. The craggy, ochre, bio-calcarenite cliffs (rich in marine fossils) form what is known as Ponta João d’Arens, a favourite spot from which to contemplate the coastline and for those who want to see the coast’s typical fauna and flora.