Blue Lagoon Abereiddy - stunning former slate quarry with turquoise waters on the Pembrokeshire coast.

Blue Lagoon Abereiddy is a striking natural attraction located on the rugged Pembrokeshire coastline in West Wales, near the village of Abereiddy. Famous for its vivid turquoise waters, this dramatic lagoon was once a working slate quarry and is now one of the most unique and scenic spots in the region, attracting visitors looking for adventure, photography and coastal walks.

The lagoon was formed when the quarry was flooded by the sea, creating its distinctive blue colour from the slate beneath the water. Today, it is a popular location for coasteering, kayaking and cliff jumping during the summer months, while walkers can enjoy breathtaking clifftop views and explore the remains of the quarry's industrial past, including ruined buildings and old tramway routes. The surrounding coastline offers a powerful sense of nature, shaped by the forces of the sea and ongoing coastal change.

Plan your visit and experience the beauty and history of Blue Lagoon Abereiddy, where dramatic landscapes, outdoor adventure and heritage combine along one of Pembrokeshire's most iconic stretches of coastline.

Find directions easily using Google Maps.