Being the fourth largest lake in the state of Wisconsin (measuring 16,500 acres), Castle Rock Lake offers boating, camping (with 300 campsites), fishing and water recreation (water-skiing, canoeing) for all water-sport enthusiasts. One could picnic or relax at Castle Rock Park, Germantown Park, or Buckhorn State Park. Launching your boat at Castle Rock is easy with the many boat launches that are available. Many campsites and resorts surround the lake and boat launches are plentiful.

Castle Rock Lake is in Adams County, Wisconsin. The area experiences cold winters and warm to hot summers, with temperatures rising into the low 80s.