← Dive-sites: Llyn Celyn


Llyn Celyn is a very large reservoir that is part of the Tryweryn River Valley. It is fairly deep at roughly 43m, although this can fluctuate depending on rainfall.

As this is an operational reservoir, diving is forbidden. The reservoir is surrounded almost entirely by warning signs.

There is parking at several spots around the edge as well as at the eastern end, where the damn can be seen. Past the damn is the National White Water Center which is popular among kayakers and white water rafters.


Afon Tryweryn Close to Empty

Afon Tryweryn Close to Empty
Afon Tryweryn Signage

Afon Tryweryn Signage

Key Metrics

RegionPersonnel AccessRoad AccessDepth (m) *Permission neededLat Long (DD)Elevation (m)
Gwynedd (E)3/5 Okay-/5 Unknown43No Diving52.950624,-3.704044294


Coming Soon

Images Coming Soon


Directions Coming Soon

Additional Risks

  • Coming Soon if Applicable


Leave a comment