Williamson Lake Trail is a 4.0 kilometer lightly trafficked out and back trail located near Fraser Valley E, British Columbia, Canada that features a lake and is rated as difficult. The trail is primarily used for hiking, trail running, and nature trips and is best used from July until September. Dogs are also able to use this trail.

4 km
536 m
Out & Back

dog friendly


nature trips

trail running




wild flowers



Williamson lake is small lake situated in a Valley below the Cheam range. The trail to access the lake is roughly 6km long and is an out and back trail. The trail features a forest and alpine meadows and a lake at the end of it. If you go to around where the lake drains you can find some small waterfalls too. Expect steep terrain, a slightly overgrown trail and plenty of deadfall for the forest sections of this hike.

3 months ago

August 16th 2018
The summer wildfires had the sky full of smoke so we decided to head to somewhere where the views of things more than a couple kilometers away weren't the main attraction. Decided on Williamson lake.

The trailhead for Williamson lake is about 4 kilometers into a 4 wheel drive only logging road just north of Foley lake, if you don't have a 4wd you can find somewhere to park near Foley and simply walk the extra distance, which is what we ended up doing.

After an hour of road walking we finally reached the trailhead, you'll start your hike in a rather bushy sort of valley and work your way up the side of it for three or four kilometers before you reach the lake. The trail is uphill the whole way, and while it can be steep in segments (notably near the end) for the most part it hangs roughly around 10-15% grade. The alpine flowers are really blooming around now and there was no shortage of colour on this hike.

The lake itself is small but rather nice, apparently there used to be a BCMC cabin up there before it was swept away by an avalanche. If you go down to where the lake drains you'll be treated to some beautiful small waterfalls too.

All in all it was a pretty good hike, definitely a good one for smoky days like today