Martin Lake boat ramp is located on the southwest side of Martin Lake within Lathrop State Park, offering access for boating, fishing, sailing, water skiing, and kayaking.

The park requires a daily vehicle pass ($10) or annual pass, and an ADA-accessible canoe/kayak launch is also available on the south side of Horseshoe Reservoir for paddlers seeking alternative access. The park is open daily from 5 a. m. to 10 p. m.

, with visitor services and a fee station located southeast of the main entrance.