The park hosts numerous varieties of songbirds and waterfowl. The trails are open for snowmobiling in the winter. A beautiful re-established prairie and a pine plantation are located in the northeast corner of the park, just off the main roadway. The beach offers unsupervised swimming fun for all ages. The lake is a fine place to fish.
Anglers can look forward to good catches of crappies, bluegills, catfish, bass and bullheads.
Any size boat motors may be operated at no-wake speeds. Two boat ramps provide convenient lake access. Falls at spillway on Union Grove Lake. Union Grove State Park, located in northwest Tama County, is a very popular outdoor recreation area. The park was established in 1938.