Llyn Padarn, which sits next to the popular mountain village of Llanberis, is blessed with a superb circular walking route. The walk takes in several interesting features relating to the history of slate quarrying in the Llanberis area. The Slate Museum in Gilfach Ddu offers a fascinating insight into life for the quarrymen in times past. You can also visit the old Quarry Hospital and take a stroll into the bottom of the impressive Vivian Quarry. The quarry base is now flooded and is well used by a diving club. You might also see rock climbers in action here, particularly if you look up to the higher levels.
The path continues on from the hospital through some lovely woodland, passing a striking viewpoint and eventually reaching the Fachwen road. This narrow winding road leads down to the bridge at Pen Llyn. The view from here back up the valley towards Snowdon is quite stunning. The route then follows the old road round past Craig yr Undeb – this outcrop is now used by climbers, but one hundred years ago it provided a meeting place for striking quarrymen.
The final run of the circuit is a delightful wooded avenue following the lakeside back to Llanberis.
There is plenty of parking available along the lakeside in Llanberis. The Gilfach Ddu car park by the Slate Museum could also be used as a base for the walk, but do take note of the closing times, which vary according to the season.
Mostly good footpaths and tracks, but some steeper, rocky sections. The fields at the Llanberis end of the lake can get waterlogged during rainy periods.