We stayed here in the summer just so that we could ride the Timothy Lake Trail on our mountain bikes. The campground is clean and has vault toilets. Most sites are shaded and level. Great for tents or small campers. The trail around the lake is spectacular and offers views of the lake and mountains from all angles. Be sure to check out Little Crater Lake if you hike or ride the trail. I've never seen a water with that color blue before!
If this campground is full, there are several others on the lake near by to look into.