Gwen Lake Recreation Site is a small, remote wilderness campground situated on the west shore of Gwen Lake, south of Merritt in British Columbia's Thompson-Shuswap region.

Nestled between Iron Mountain to the north and Selish Mountain to the southwest, the lake sits at roughly 1,239 metres elevation and is reached via rough gravel roads best suited to trucks, campers, and tents rather than large rigs.

The site offers a handful of campsites set under heavy tree cover a short walk from the water. Each site has a roughed-out fire pit, at least one has a picnic table, and pit toilets are tucked among the trees.

A weathered pier provides lake access for canoeists and anglers. Camping is first-come, first-served with a 14-night maximum stay. The lake is popular for fishing, canoeing, and quiet wilderness camping.