In the midst of all the forest fire smoke a few weeks ago my friend and I took a Tuesday off work to hike to Wedgemount Lake.
Vancouver Trails describes it as "the most difficult hike in Garibaldi" and a "gruelling trek" with "spectacular scenery."
I was into it.
All in, it took us about five hours round trip (though that was with lots of stops for photos and lunch).
I'd really recommend this hike - it's probably even more beautiful on a clear day.