From Merritt take Hwy 97C/ Hwy 8 west out of Merritt for 8 km. Turn right onto the paved Aberdeen Road and which then turns in to the Pimainus Forest Service Road at kilometre 7 which is gravel. Follow the Pimainus mainline and turn left at 36.5 km and follow the short, rough road down to the lake.
Note this is a heavy used industrial road and caution should be taken in particularly for the first 13 kilometres where the road is a bit curvy and has some narrow corners.