Sintra–Cascais Natural Park Coastal Trail

The Sintra-Cascais Natural Park Coastal Trail runs roughly 20 km along the Atlantic-facing cliffs of Portugal's Lisbon coast, linking Cabo da Roca, continental Europe's westernmost point, to the seaside town of Cascais. The trailhead at Cabo da Roca is reached by Bus 403 from Cascais (about 30 minutes); there is a car park at the lighthouse for those driving, and no permit is required. The route follows a mix of packed dirt, exposed sandstone, and short boardwalk sections over dune scrub, with total ascent of roughly 600 m spread across rolling headlands rather than one sustained climb; the highest point sits around 140 m. Exposure to wind and sun is constant along the cliff edge, and shade is virtually nonexistent for the entire length, so early starts are worthwhile in warmer months. Landmarks along the way include the fishing village of Azenhas do Mar's outskirts, the dramatic Praia da Adraga viewpoint, and the Guincho dune system before the trail drops into Cascais near the Boca do Inferno chasm. Hikers who do not want the full traverse can turn around at Praia Grande, roughly the halfway point, and catch a bus back toward Sintra or Cascais. There are no refuge huts or emergency shelters along the route, and drinking water is only reliably available at cafes in Praia Grande and Azenhas do Mar, so carrying at least 3 litres is standard advice. Mobile phone signal is generally reliable but can drop in low-lying dune sections. The trail sits entirely within the Sintra-Cascais Natural Park, a protected landscape managed by the Instituto da Conservação da Natureza e das Florestas, and dogs are permitted on leash. Because the path runs along unfenced cliff edges in several stretches, it is unsuitable for young children or anyone uneasy with heights.