Blue Lagoon, Pembrokeshire, Wales
Swimplaces
Description: Both thrill seekers and swimmers will enjoy a splash in the Blue Lagoon in Abereiddy, Pembrokeshire. Grey slate gives the breached 25m-deep quarry pool a brilliant blue colour. The remains of the old quarry building also make great platforms to jump from. We love it so much that we even held a round of the Red Bull Cliff Diving series there back in 2013.