This is a great half-day hike to take if you're ever in the Lake Tahoe area. It's about 5 miles round-trip, dog-friendly, and you get beautiful views of the Alpine Meadows valley and ski resort and the Granite Wilderness area, and you even hike next to some (not in use) ski-lift towers.
Bear (our dog) and I had fun exploring the area to see if we could find all 5 lakes; we found 4. And yes, Bear had to swim in all of them.
It's a pretty mellow hike, with about 900 ft. elevation gain.