Tanygrisiau Reservoir

Updated: July 20, 2025
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Walk Highlights

Location:
Blaenau Ffestiniog
Postcode:
LL41 3TP
Parking:

There is usually a dedicated car park located near Tanygrisiau Reservoir in Gwynedd. This is often associated with the Ffestiniog Railway's Tanygrisiau station (which is nearby) or the access road for the Stwlan Dam (part of the power station complex, though public vehicle access to the dam road itself is usually restricted). This car park provides a good starting point for walks around the reservoir. Check local signage for any parking fees or restrictions that may apply at this Gwynedd location.

Distance:
3.10 miles
Time:
1.50 hours
Difficulty:
Moderate
Terrain:

The terrain for a walk at Tanygrisiau Reservoir in Gwynedd includes some surfaced paths and access tracks (related to the power station), as well as gravel paths and some rougher, rockier sections, particularly if venturing slightly off the main perimeter path or onto higher ground. There are some gentle to moderate undulations. The area is very exposed to mountain weather, which can change rapidly and be severe. Sturdy footwear is highly recommended for this Gwynedd walk. Be prepared for wind and rain.

Facilities:
Cafe

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