Lathrop State Park provides access to Martin Lake Reservoir via a boat ramp located on the southwest side of the lake, as well as an ADA-accessible canoe/kayak launch on the south side of Horseshoe Reservoir.

The park charges a $10 daily vehicle pass or $4 individual daily pass and offers 40 picnic sites, 103 campsites, and 8 miles of trails, with visitor center hours from 8 a. m. to 4 p. m. daily.