The beach is named after the Torre Velha (Old Tower), a fortification commissioned by King John III in the 16th century.
The cliffs surrounding the cove are composed of Miocene limestone, which is prone to erosion and frequent shape changes.
The beach is part of a larger stretch of coastline that experiences significant tidal variance, drastically altering the available sandy area.
Despite being in the busy Albufeira region, its tucked-away location often results in lower crowd density compared to Praia da Oura.
The water clarity is frequently cited for snorkeling due to the rocky seafloor composition.
Praia do Castelo is a sheltered cove defined by dramatic limestone cliffs and scattered rock formations on the sand. The beach is accessible via a staircase leading from the coastal plateau. Its name originates from the nearby Torre Velha, a 16th-century watchtower built to defend the coastline from pirate incursions. The beach features a Blue Flag status, indicating high water quality and environmental management standards. Strong rock formations divide the beach into smaller, private sandy pockets during low tide. The surrounding landscape consists of Mediterranean scrub and typical Algarve karst geology.
From the clifftop staircase overlooking the cove for a panoramic view of the rock formations.
Visit during low tide to access hidden rocky coves and walk further along the base of the cliffs.
Wear water shoes, as the seabed near the rock formations can be uneven and occasionally slippery.
The beach is popular with local families; arrive early in the morning to secure a spot near the cliff wall for natural shade.
Attempting to climb the cliff faces, as they are composed of unstable limestone prone to rockfalls.
Standard beachwear is appropriate; keep noise levels moderate to respect the quiet environment.