Did the Chadsey lake trail heading in from Sumas Mountain yesterday. Lots of mosquitoes at the lake and unfortunately, a lot of garbage and the remnants of a bonfire. Can't believe people don't take their crap with them. This is quite a climb - 7 km one way. It is rated as "moderate" but there are parts that are very strenuous as well as very narrow. Didn't loop around the lake due to the mosquitoes.