A hidden blue lagoon off the Welsh coast in Pembrokeshire has become a popular spot for wild swimming and sunset viewing. Nestled behind rugged rocks along a coastal path in the hamlet of Abereiddi, the lagoon offers a tranquil escape from the nearby beach, which can become crowded with tourists in summer.
The lagoon, located just north of Abereiddi beach, was once a working slate quarry operated by the St Brides Slate Company until 1910. The slate gives the water its distinctive vibrant blue hue. Today, visitors enjoy cliff jumping and diving from a carved-out platform, though caution is advised due to loose rocks and slate.
Access to the lagoon involves a five-minute walk from a car park with limited spaces at Abercastle and Abermawr Woods, or a longer hike along the coastal path. It is also a 12-minute drive or 30-minute bike ride from the nearby town of St David's, the smallest city in the UK.
Visitors have described the lagoon as a "spectacle" with "breathtaking views." One reviewer noted, "We arrived at dusk, and watching the sunset over the lagoon was stunning; well worth a visit." Another advised wearing sturdy shoes for the steep, muddy hill leading to the spot.
