Union Grove Lake is a 110-acre body of water within Union Grove State Park in Tama County, Iowa. The lake features two boat ramps providing access - one near the swimming beach on the east side and another on the west side. A dedicated kayak dock installed near the swimming beach offers easy access for paddlers.

This is a no-wake lake, creating calm conditions ideal for paddling. The lake is surrounded by scenic parkland established in 1938, offering paddlers views of restored prairie, pine plantations, and hardwood forest. Wildlife viewing opportunities include deer, turkey, songbirds, and waterfowl.

Launch facilities include paved parking areas adjacent to both boat ramps. The lake organization maintains a kayak dock specifically designed for easy launching and landing of paddle craft. Essential amenities include restrooms, picnic areas with shelters, and a swimming beach near the east boat ramp.

Three miles of hiking trails wind around the lake through diverse habitats, allowing paddlers to combine their water activities with shore-based exploration. The northeast corner of the park features a distinctive re-established prairie and pine plantation visible from the water.

The park provides overnight options including modern family cabins and a campground with full hookup sites. Both modern restrooms and vault toilets are available in the camping area. Numerous shaded picnic areas along the shoreline offer spots for take-out breaks.

The lake hosts occasional organized paddling events, such as the kayak rally held on Labor Day weekend. While specific paddling routes are not marked, the lake's modest size makes it suitable for casual exploration. The waterfall and dam area, frequently photographed landmarks within the park, provide scenic points of interest for paddlers.