These dark yellow and light red fossil cliffs were created over centuries by erosion and other geological processes. Their formation dates back to the Pliocene period. Hence, today, they serve to show us the former coastline, the one which existed around 10 million years ago. It is not hard to notice how significantly it differs from the modern one. The best time to visit the protected area, 40-minute drive from Lisbon, is before the sunset when the warm light saturates the natural yellowish colors of the fossil cliffs. From their top, an amazing view opens on the entire area.
For birdwatchers, there is surprise hidden in the cliffs: some birds, for instance, round winged eagles and barn owls build their nests here.
In the area, there is also a Botanical Reserve dominated by stone pines and mastic-trees. During the spring, the area gets covered with wildflowers in bloom. Meanwhile, during the warm months, it is the best time for visiting plenty of beaches that stretch for about 10 km and stop by the picturesque Albufeira Lagoon. Moreover, in winter months the beaches are much more narrow due to erosion.