Trail Running Planet · Snowdonia · Snowdon
Yr Wyddfa via Llanberis Path
It's the most runnable line to the summit of Yr Wyddfa, following the rack railway most of the way up, so you can move fast on genuinely good underfoot conditions rather than picking through rock.
Distance
16.2 km
Ascent
959 m
Descent
956 m
Max elevation
1,070 m
Route type
Out & back
Est. time
4h 5m – 5h 35m
Grade
Very Hard
Navigation
straightforward
Parking
LL55 4TT
Dogs
Welcome
Best seasons
spring, summer, autumn
About this route
The classic there-and-back up Wales' highest mountain from Llanberis village, 16.2km round trip with 640m of climbing on the longest but most straightforward of Snowdon's paths.
Hazards & notes
Weather at the 1,085m summit is consistently colder and windier than the valley, and cloud can close in fast even when Llanberis is clear. The path is busy in summer, which brings its own risk of congestion near the top in poor visibility.
Emergency
Call 999 or 112 → ask for Police → request Mountain Rescue. Register Emergency SMS: text "register" to 999.
Full route, GPX download & live conditions:
https://trailrunningplanet.com/routes/england/snowdonia/snowdon/yr-wyddfa-via-llanberis-path
trailrunningplanet.com