Minniwakan Boat Ramp at Mini-Wakan State Park features a two-lane concrete ramp with dock access for efficient boat launching onto Big Spirit Lake, Iowa's largest natural lake, with paved parking areas designed for trailers and vehicles.

The facility offers free boat ramp use and is open year-round during standard park hours (4 a. m. to 10:30 p. m. ), with additional after-hours fishing access available from the bank between 10:30 p. m. and 4 a. m.

The park also provides shoreline fishing opportunities and is located at 24490 100th Street, Spirit Lake, IA 51360, with contact information available at 712-337-3211.