The route is from Bangor to Cardiff : ~350km long with ~6,200m of ascent via 4 checkpoints (all dams) spread out over the mountains of Eryri (Snowdonia) and Bannau Brycheiniog (Brecon Beacon) NPs
The trial consists of a start point, 4 checkpoints, and an end point. You choose the route passing through these checkpoints.
Tweet a timestamped photo at the start, at each checkpoint, and at the finish using the #TransWales23 hashtag
Checkpoints
Chose your own route passing through the following points: