Barclay Lake is a beautiful, easy hike with lots of good scenery. The road in has many potholes, some of them substantial. We had a RAV4 and still had to do lots of weaving to get around the biggest ones. There were 7 cars at 9:30 at the trailhead when we arrived and lots more when we finished at 1:30. A number of people were camping overnight in some of the nice campsites.
The trail is in good condition. The trail from the mid-section of the lake to the east end has many mudholes. The sturdy log bridge with handrail is in good shape.