Union Grove Park offers a four-lane boat ramp and fishing dock on the southwestern shore of Stillhouse Hollow Lake, open year-round from 6 a. m. to 8 p. m. with a day-use fee required.

The facility features restrooms, a swimming beach, and playground, with nearby camping available at the park. Note that zebra mussels have been found in the lake—boaters must clean, drain, and dry all equipment before leaving.