Pwll Clai

Wild swimming enthusiasts will find this secluded lake a proper treat, tucked away in Anglesey's rugged interior near Holyhead. Pwll Clai sits in a natural hollow surrounded by gorse and heather, its dark waters reflecting the Welsh sky on calm days. The water's surprisingly deep for such a modest-looking spot - cold year-round, naturally, but refreshing after a decent walk.

Getting here requires a bit of effort. No car park or clear signage, just rough paths across moorland that can get boggy after rain. Families with small children might find the terrain challenging, though older kids who fancy themselves explorers will love the adventure of finding it. Serious walkers and wild swimmers are the main crowd, plus the odd angler trying their luck.

The lake works well as a wild detour if you're staying at one of the holiday parks around Holyhead - Coastal Pods and Two Peas in a Pod are both within easy reach. Pack a flask and waterproofs; Anglesey weather changes faster than you can say Pwll Clai. It's not a day-long destination, more a rewarding hour or two for those who appreciate unspoiled Welsh countryside. Definitely worth the muddy boots if you're after something genuinely off the beaten track.