Walk along powerline cutblock sandwiched between Mt. Capilano on the East, and Deeks/Windsor to the West. Branch of Furry Creek FSR leading to twin lakes, then locked Capilano watershed gate:
Hardest part is to identify correct access, considering total lack of signs. I took Golf Course exit of Sea-to-Sky, then drove past Country Club and turned into Furry Creek FSR. Bit rough but totally 2WD driveable for few kilometers till first major intersection, where I parked and started walking down right-side fork. Good bridges over Furry and Phyllis Creeks in short succession lead to switchbacks -- 2WD might have problems here. On next fork took lower (left) road and kept walking along the cutblock. Twin powerlines and rushing Phyllis creek are nearby for the rest of the walk. Semi-open road, canopy of rotting leafs and low fog hanging on, but no rain. Reached Marion Lake in about 1.5 hr from parking:
From where you first spot Marion Lake there is no easy access down (specially as everything was soaking wet). I kept walking for few minutes; pay attention to clearing and open slope descending to powerline to the right. Good trail can be found just bellow; set of flags lead left towards Phyllis Lake, but this is wrong and quickly ends in horrible bush. However turning right well-defined path (no flags) leads in few minutes to south shore of Marion Lake. Couple of stashed canoes and tossed bear cans testify this is visited with some frequency:
Returning back to the road, I passed by rock with some paint signs, next to a gully and several flags leading as far up as I could see -- anyone knows what this is?
Phyllis Lake is nearby. There is nice looking dock about halfway along the lake; I descended (bit rough -- caution if slippery) and had snack break:
The road continues past this for 10-15 more minutes through some cool-looking Frodo trees to locked Capilano Watershed Gate and end of the hike:
I returned the same way. GPS indicated 8 km and 450 vertical from parking to watershed gate. My return time was 3.5 hours, including about 15 min worth of breaks.
Some observations: This is road walk, and not really trail hike. It would be hard to justify it as objective on a sunny summer day; but as winter showshoe trip (or cloudy wet fall trip, such as today) it is agreeable destination. Entire length is mountain bike-able (and of course 4WD accessible). I understand also there is alternate access from Porteau Cove, but I don't have much details about this.