A sandy beach with shallow entrance to the water - suitable for families. However, be aware of the cold water!
Visit Portugal website https://www.visitportugal.com/en/NR/exeres/AA6C4CB7-7777-497D-9F00-9ECDAE52F6C2
Address 8 Rua Frederico Arouca, Cascais 2750, Portugal
Coordinates 38°42'1.522" N -9°24'56.882" E