The Nursery School Denver holds classes at Bluff Lake Nature Center near the Stapleton neighborhood. Bluff Lake Nature Center occupies 123 acres adjacent to Sand Creek on the eastern edge of the Stapleton development. It offers a variety of native habitats including a lake, wetlands, short-grass prairie, a riparian zone and wetland woodland. Thanks to its 60 year history as an airport buffer, Bluff Lake has become an urban wildlife refuge for waterfowl, shorebirds, raptors, songbirds, deer, fox, beaver, reptiles, amphibians and other types of wildlife that visit or live at the site. Bluff Lake is at 3400 Havana Way Denver, CO 80238.