← Dive-sites: Llyn Ogwen


Reaching only 3m deep, Llyn Ogwen isn’t a particularly amazing dive, but it’s worth checking out due to its easy accesibilty. Lying between the Carneddau and Glyderau mountain ranges, it’s at the very least a picturesque dive.

The entry is not far from the car park, and though a little bit rocky can be easily traversed. The shore slopes slowly down to around 3m but there is little more to see than grass and the odd bit of litter. Although technically an altitude dive, the shallow depth means little additional risk.

Legend tells that after his final batlle, King Arthur threw his sword, Excalibur, into the lake where it was caught by “the Lady of the Lake”


Llyn Ogwen Shore

Llyn Ogwen Shore
Llyn Ogwe Path

Llyn Ogwen Path

Key Metrics

RegionPersonnel AccessRoad AccessDepth (m) *Permission neededLat Long (DD)Elevation (m)
Gwynedd (N)4/5 Good5/5 Excellent3Unknown53.124212,-4.003868310


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Llyn Ogwen lies about 5 miles south of Bethesda, along the A5 which has a couple of car parking areas along side it – the most east of which seems to be the best for access to the water’s edge. Towards the western side of the car park there is a break in the wall, which leads to a grassy path down to a couple of reasonable entry points.


  • Topham, Simon. “Llyn Ogwen”. Mysterious Britain and Ireland. Archived from the original on 23 April 2016. Retrieved 16 April 2016.
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