Skomer Island Marine Conservation Zone in Pembrokeshire offers exceptional reef diving through kelp forest cathedrals with an extraordinary abundance of marine life protected from fishing for decades. Grey seals, puffins visible from the boat above water, lobsters, and a dazzling variety of fish make Skomer one of Wales's most magical dive destinations.
The Elegug Stacks off Pembrokeshire's Castlemartin Peninsula are dramatic limestone sea stacks surrounded by shallow reefs ideal for beginner and intermediate divers, with grey seals hauling out on the rocks above and exploring underwater alongside divers. Nesting guillemots and razorbills create an unforgettable above-water spectacle while the reef below teems with wrasse, anemones, and crustaceans.