Llanberis Path

This is a there-and-back climb to the summit of Yr Wyddfa, and the 14.5 km / about 9 miles is the full round trip, not one direction. Reckon on roughly 7 hours moving and resting, with about 975 m of ascent. You start at the far end of Victoria Terrace, by the mini roundabout opposite the Royal Victoria Hotel at the southern end of Llanberis, and you come back down the same way.

The marked route leaves the village edge along farm access and passes under the railway bridge before settling into a long, steady pull. The Halfway House marks the rough midpoint, then the path climbs above Llanberis alongside the mountain railway toward Clogwyn and Bwlch Glas. From Bwlch Glas the last section steepens for the final push to the summit, where the payoff is the high, open ground at the top of the massif.

The park authority classifies it Hard/Strenuous and says it suits experienced country walkers with good fitness and essential navigation skills. It is the longest of the six main summit paths and gives the most gradual climb of them, which is not the same as easy. Expect steep sections, rough ground, and the possibility of some scrambling, and carry full hill-walking gear rather than trainers and a hoodie.

Footing is mostly a broad, worn mountain path that turns rockier and rougher higher up. Two places deserve extra care: the ground near Cwm Glas Bach and the section around Carnedd Ugain. Keep to the path throughout and never walk along the railway tracks, even where the line runs close alongside you. Conditions and daylight change a lot through the year, so plan your turnaround time and layers around the season you are walking in.

The official start is the far end of Victoria Terrace, and designated car parks in Llanberis serve the route. Do not park on side streets or in residential areas. Of the main summit starts, Llanberis has the best public transport links, including Sherpa'r Wyddfa services from Betws-y-Coed, Bangor, and Caernarfon, which also solves the problem of returning to a car after a long day.

Dogs are allowed under close control on the public rights of way. A short lead is best anywhere near livestock or wildlife, and on Open Access Land dogs must be on a lead of no more than 2 m from 1 March to 31 July, while livestock and ground-nesting birds are breeding.

This is the most popular of the main approaches to the summit, largely because of the gradient and the transport links. If you would rather trade distance for a sharper, rockier climb, the Miners' Track and the Pyg Track are shorter routes starting from Pen-y-Pass, with steeper ascents and a different feel. They are separate paths, not variations on this one.