Blue Lagoon, Former slate quarry in Pembrokeshire National Park, Wales.
The flooded quarry forms a deep water basin surrounded by towering slate cliffs, creating a natural swimming spot along the Welsh coastline.
The St Brides slate quarry operated until 1910, when local fishermen blasted the seaward wall to create a sheltered harbor for their vessels.
The Blue Lagoon serves as a training ground for water sports enthusiasts and has hosted multiple Red Bull Cliff Diving competitions since 2012.
The site is accessible via a 400-meter walking path from Abereiddy Beach car park, which charges 4 pounds for all-day parking.
The water reaches depths of 25 meters and displays a green mineral tint while reflecting bright aqua blue from the surrounding slate walls.
Location: Pembrokeshire
Address: Abereiddi: SA62 6DT, Abermawr: SA62 5UX, UK SA62 5UX SA62 5UX
Phone: +441437720385
Website: http://nationaltrust.org.uk/abereiddi-abermawr
GPS coordinates: 51.93790,-5.20917
Latest update: March 6, 2025 21:43
Wales features a region with three national parks, including Brecon Beacons and the Pembrokeshire coast park, as well as fortresses like Conwy and Caernarfon castles built by Edward I in the 13th century, and religious buildings such as St. David's Cathedral. The coastline alternates between red sandstone cliffs, sandy beaches, and islands like Anglesey, while the inland reveals mountains, lakes, and valleys such as the Elan Valley with its historic dams. Welsh towns preserve their architectural heritage, with Cardiff as the capital. The Gower Peninsula offers limestone cliffs and sea caves, Tintern Abbey has been a Cistercian monastery since 1131, and Powis Castle features terraced gardens. Former mining regions and botanical sites reflect the country's industrial and cultural evolution.
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