Also feeding Green Lake are Fitzsimmons Creek, which originates in the valley above Whistler Village between Blackcomb and Whistler Mountains, and Rainbow Creek, which descends from Rainbow Mountain via the Alpine Meadows subdivision.

A former minor ski hill, Rainbow, is located midway between Alpine Meadows and Emerald Estates near the lake's western extremity.

The Whistler neighbourhoods of Alpine Meadows and Emerald Estates are located on the lake's southwestern and northwestern shores, respectively.

Parkhurst grew up around a lumber mill on a point on the east shore of the lake at its narrowest point, opposite Emerald Estates; the porch of the old main building was the location of a locally famous group nude photo by squatter residents of the area in the 1970s, many of whom now figure in the Whistler establishment.

Green Lake is 633 m in elevation, approximately 1.2 km in length, and averages about 650 m in width—with an area in the range of 2.2 km2.