Bwlch y Groes and Aran Fawddwy Circular

Yes, this is a dog friendly mountain walk rated 7 out of 10 for dogs. The broad grassy ridge and open access land make it a good choice for dogs who are fit and comfortable on mountain terrain, though the exposed conditions and rocky upper sections mean it suits confident, well-exercised dogs rather than beginners.

Most of the route runs over access land where dogs can be off lead, but there are important seasonal restrictions to be aware of. Sheep graze the lower slopes and the upper crags support ground-nesting birds, so dogs must be kept on a lead between 1 March and 31 July each year.

This is a serious mountain day out with no facilities whatsoever on the route, so you'll need to carry enough food and water for both you and your dog for the full circuit. The terrain includes boggy sections and rocky ground near the summit, and the ridge is fully exposed to the weather, so this walk demands preparation. If you're looking for a post-walk reward, the dog friendly Eagles Inn at nearby Llanuwchllyn is a great option. Parking is free roadside at the pass but limited to around 15 spaces, so arriving early is advisable at weekends.