Praia da Cresmina, Atlantic beach in Cascais, Portugal

Praia da Cresmina is a beach on the Atlantic coast in the Cascais municipality, about 30 km west of Lisbon. Sand and dunes lie at the foot of the Sintra hills, and the Ribeira da Crismina reaches the sea here. The area has a mild climate, around 15 °C on average, with rain mostly between autumn and spring.

The beach lies about 30 km west of Lisbon, in the municipality of Cascais, near Fortaleza do Guincho. The source documents record only its position on Portugal's south-western Atlantic coast and its mild climate, with an average temperature of 15 °C and about 795 mm of rain a year.

The beach sits within the Sintra-Cascais Natural Park, next to the dunes of the Guincho-Cresmina dune system, and is reached by a wooden boardwalk from the Guincho road. Surfers and bodyboarders use the Atlantic swell here, while walkers cross the sand on the way between Guincho and Cresmina.

The beach sits about 30 km west of Lisbon in the Lisbon district, reached from Cascais along the Atlantic coast road. The sand is divided by the Ribeira da Crismina stream, so pick your spot according to which bank you prefer. The exposed shore faces open ocean swell; the sources give no lifeguard cover, so check conditions on arrival and keep to the sand if the surf is up.

The Ribeira da Crismina stream flows directly into the center of the beach, creating a natural division between sandy areas. This feature makes the location interesting for visitors curious about the interaction between freshwater and salt water on an exposed Atlantic shore.