One of the lesser known, but well traveled lakes that can be done straight from the Sea to Sky highway. Trail starts from the ever busy Murrin Lake Provincial Park lot, and winds its way up through new growth, logging roads, and finally some old growth at the end by the lake.
The four of us got to the lot at 1 PM on a hot Sunday. I would recommend for people to do this hike early as the lot fills up fast with people staying at the lake by the parking lot. We ended up finding a spot at the viewpoint 1.5km down towards Britannia Mine but before the steep hill.
The route starts off a bit steep, and then keeps going all the wall to the lake a decent grade. Total elevation gain appears to be more than listed online due to the ups and downs. It took us 2 hours at a leisurely pace while chatting and carrying fishing rods. It was nicely shaded for a good part of the trip which was nice as well. Lots of recent logging activity in the past five years up there.
The lake was very nice and after no success fishing (and no fish surfacing) we went in for a well deserved swim. Water was cold but more manageable when the sun came out. We swam for twenty minutes before drying off. The bugs were out but not terrible and made for a good time at the top. Not much shoreline to hang out on at all, but there was a makeshift dock from cedar shakes that was convenient to hang out on.
There is also a nice viewpoint near the lake that we didn't go to, but would recommend checking out. Some other nice viewpoints on the way down. Overall, a fun trail that is good for groups and is intermediate.