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Dog Days Out: Llyn Brianne Reservoir

Grand Tours days out

South Wales Dog Friendly Walks - Llyn Brianne Reservoir

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Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk three dogs. Jack, Sheeba and Bryn in car
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk where dogs can swim from picnic area


Llyn Brianne, including scenic circular drive


Tell your owner to set sat nav to take you to Ystradffin via Abergwesyn.

Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk where dogs go for a swim
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk


Check where you are going against the map in case your sat nav does not take you on the correct lanes.


The recommended route takes you on a scenic drive with lots of views.


Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk pincnic area on peninsula
Dog friendly accommodation Wales - Llyn Brianne Reservoir sign and dog walk

Lanes are narrow, winding and steep in places as you drive through deep valleys with sheer drops on one side - several blind bends and summits.

Drive through a series of valleys and forests and up some steep hills with switchback roads, until you see the waters of Llyn Brianne before you.

Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk showing dam
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk crossing over the dam


There are some nice stopping spots along the shore before you get to the dam itself where us dogs can get out, have a sniff, stretch our legs and take a comfort break.

The drive around the reservoir alone is several miles long so we'll need a few stops.

Before you get to Ystradffin you'll see a sign to Llyn Brianne Dam.

Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk path over the top of the dam


We can park up in an area that used to be a quarry (presumably providing the material for the dam) and read the Plaque.

Walk over the Dam and around the side of the Llyn Brianne reservoir.

This could be a long or a short walk but we will never get all the way around the reservoir, so will need to turn around and walk back.

Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk, Jack the dog admires the view

Circumnavigating Llyn Brianne on foot is not possible; it is HUGE. So we'll just go an hour or two or more round it clockwise (having crossed the dam), then walk back the same way we came - the way back always seems faster, doesn't it!

Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk with three dogs
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk mountain and reservoir scenery


We can take one route to Abergwesyn via Beaulah and another lane which goes off from Llanwrtyd Wells.


If we go via Tirabad we will join the A483 at Llanwrtyd Wells, where we turn right (North) to Beaulah - contrary to sat nav's attempt to get us to go via Llanwrtyd Wells - before going on to Abergwesyn.


Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk mountain and valley views
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk forest and mountain views


The scenery and walks are excellent.


Look out for the private beach area a few miles before the dam itself, a third of the way along the reservoir.

Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk mountain and reservoir scenery
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk stream and river as seen from reservoir dam


Worth a stop for us dogs to swim and chase after sticks in the reservoir.

Also a nice spot for picnics and barbecues in good weather (see pics at top of this page - 2nd pic first row to 1st pic second row).

Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk river and mountain valley


The walk itself is a mixture of woodland and views of the reservoir, not too hilly. It follows the shore of the reservoir, heading into the woods from time to time as you curve round.


Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk, the Lynne Brianne dam


If we get bored of the reservoir, there are some woods we can sniff out for a different walk.

At one point you can appear to be doing a circular walk back to the dam, but let's not be fooled; there is no way back other than the way we came.

Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk green valley scenery
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk reservoir sluice drain
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk view of water
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk and scenic driving
Dog friendly accommodation Wales - Llyn Brianne Reservoir wet dog walk path in deep forest
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk path across the reservoir dam
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk and driving scenery
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk with reservoir and forest views
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk stunning views from the path over the dam
Dog friendly accommodation Wales - Llyn Brianne Reservoir dog walk high up in remote mountain area


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