A beautiful and unique natural area, Griffy Lake is a 1,200-acre nature preserve located just minutes from downtown Bloomington. Originally designed as a supply for city drinking water, Griffy is now a paradise for the avid outdoors person. The lake itself is 109 acres and has an average depth of 10 feet. Great hiking is available on several moderately difficult trails that wind through the wooded ridges and ravines around the lake. Rent a canoe, kayak, stand-up paddleboard, rowboat or launch your own boat.