We have a condo at the Wild Irishman in Keystone. This is an easy little walk from there. The loop around the lake is gorgeous. You have great mountain, ski slope and wildflower views. Unfortunately most of the little businesses have closed down, I'm not sure why. There is still a pizza place and a nice sit down restaurant that allows dogs on the patio. During the summer you can rent paddle boards, paddle boats or kayaks. The lake is also filled with huge trout (I've never seen anyone fishing though). In the winter it becomes a beautiful ice skating rink. I've never seen it crowded. Busier in the winter though. It's a short walk from Keystone village and gives you a sense of mountain peace and calm.