Fishing can be done by boat or from the bank.  Any type of boats are allowed on Refuge waters. In winter, ice fishing is very popular. Trotlines are allowed as long as they are clearly marked. Several boat launches are available.Fishing for walleye, largemouth bass, black crappie, channel catfish, and other species is permitted in Kirwin Reservoir, the North Fork of the Solomon River, and Bow Creek. Anglers may fish from the shore year-round, and boats are allowed on the reservoir in specified locations. One or more boat ramps are available, depending on reservoir water levels.

Kirwin NWR is open to sport fishing in accordance with Kansas State Fishing Regulations, unless signs or buoys indicate otherwise. 

• Boating between October 1 and April 1 is prohibited, except for south of Scout Cove. Boats may be launched at Scout Cove during this period.
• A no wake zone is in effect within 300 feet of all shorelines and islands, as well as on the Bow Creek arm. 
• The Solomon River arm is closed to all motorized boats. Motorless boats and float tubes are allowed on theSolomon River from August 1 through September 30.
• Boats must be equipped and operated in accordance with Kansas Boat and Water Safety Laws and appropriate Federal regulations.
• Disposing of fish cleanings on the Refuge or in the reservoir is littering. A fish cleaning station is located on the square in the city of Kirwin.