Bala Lake (Llyn Tegid), nr Llanuwchllyn

From Openwaterpedia

Created By Andrew Peake for Outdoor Swimming Society

Llyn Tegid is the largest natural body of water in Wales and is set in a mountain valley. It is owned by National Parks and swimming is allowed at any time, so it is used freely by triathletes for training during the summer season, and often hosts events. Wrecsam Tri are among those that use it.