What visitors say
Rainbow Falls drops about 140 metres in several steps down Slollicum Creek to the east shore of Harrison Lake, where it meets the lake at a BC recreation site. Visitors describe a quiet beach, a dock and a short forested trail to the base of the falls, with cool spray that feels like air conditioning on a hot day.
Getting there is the adventure. The recreation site is boat access only, usually from Harrison Hot Springs, and the walk from the dock takes about five minutes over some uneven, rocky ground. Several reviewers came on a local boat tour and enjoyed the commentary. There's an outhouse at the site. In high water, one boater found getting off the dock tricky.
It's a favourite stop for the Harrison Lake boating crowd: tie up, swim in the very cold water, have lunch on the beach and walk up to the falls. Some visitors climb higher for more views, which calls for sure feet.
Be aware of a mix-up. Many reviews describe driving the rough East Harrison forest service road and viewing a waterfall from a bridge; according to local sources that's Slollicum Creek Falls upstream, not the lakeside Rainbow Falls. That road is dusty, bumpy, used by logging trucks on weekdays and icy in winter, and a high-clearance or 4x4 vehicle is recommended. Bring bug spray for the lakeside site.
Summarised from visitor reviews on Google Maps. Based on 87 Google reviews. Conditions and rules change — check current park, access and fishing regulations before you go.