These lakes are nestled at the base of Mount Sneffels in the Mount Sneffels Wilderness Area by Ridgway. The hike to the lakes isn't overly difficult, but it is uphill most of the way. Round trip distance is about 9-10 miles to see all three lakes.
Getting to the trailhead is the same as one of the routes on Mount Sneffels. The trail splits right after the trailhead. Follow the right fork for about 3.5 miles to the first lake. The trail is pretty uneventful, but if you hit it at the right time of the year as we did, the wildflowers are unprecendented. Columbines abound, and we counted at least 12 different kinds of flowers.
These lakes are named for their blue-green water. The first lake is probably the most beautiful as far as the water goes. 
The lower lake is also the largest of the three. I tried my hand at fishing for a while, but without any hits or nibbles for about half an hour, I stopped. We continued up the trail to the upper lakes. The second lake is pretty, but not so much as the first. The columbines were very prevalent along the trail from the second to third lake. Big batches of about 20-30 flowers were common, not something you see all the time.
Once we reached the upper lake, Mount Sneffels appears almost directly overhead. You can continue from here up to Blue Lakes Pass, decend about 300 feet, and go up the easiest route on Sneffels. I wouldn't recommend this, as the hike to the upper lake is tough in itself. 
In my opinion, the upper lake is the most beautiful, just because of the mountains behind it.
If you plan on fishing up here, I would try to find out some information about the lakes before going. I did figure out why I didn't get any bites. The bottom of the outlet to the lower lake was covered with San Juan Worms, and I hadn't tried any of these.
If you are in the area of Ridgway and have a chance to see these lakes, I would. The trip itself is worth the hike, and the scenery is spectacular.