From N17:
At kilometer 55, in Catraia de Mouronho, take the N337 toward Mouronho and Secarias.

From IP3 (from Coimbra or Viseu):
Near Penacova, take the IC6 toward Arganil and Covilhã. On the N17, at kilometer 55, in Catraia de Mouronho, take the N337 toward Mouronho and Secarias.

From Arganil:
Follow the signs for Secarias/Côja via the EN342, or from Côja, follow the same road toward Arganil. After the roundabout at the end of Secarias or as you enter Secarias (depending on your direction), turn toward Mouronho and Tábua. About 200 meters ahead, follow the sign for Praia Fluvial da Cascalheira.

Coordinates

GD: 40.2489 -8.03587
DMS: 40°14′56.04″N 8°2′9.13″W
UTM: 29T 581998 4455829