Use sunset as your turnaround alarm.
Four alpine lakes on one family-doable loop.
2 liters water, trail shoes, sun layer, snacks, small first-aid kit.
Make it a weekend: Mirror Lake (Uintas) (Fishing, 2 mi) · Mirror Lake Campground (Camping, 2 mi) · Moosehorn Campground (Camping, 2 mi) · Trial Lake Campground (Camping, 5 mi)
More hikes nearby: Ruth Lake (Hike, 1 mi) · Fehr Lake Trail (Hike, 2 mi) · Bald Mountain (Hike, 3 mi) · Amethyst Lake (Hike, 7 mi)