♿  There are three picnic areas in the park. Restrooms and some charcoal grills are in each area.

Make a reservation for a picnic pavilion at Codorus State Park.

Swimming Pool Day Use Area

This area is near the pool and boat rental. Many tables are in the shade of the forest.

There are also two picnic pavilions, which each hold 70 people. Picnic pavilions may be reserved up to 11 months in advance for a fee. Unreserved picnic pavilions are free on a first-come, first-served basis.

Marina Day Use Area

This grassy picnic area overlooks Lake Marburg and is near the marina, boat mooring, and disc golf.

Main Launch Day Use Area

There is a picnic pavilion which holds 50 people. Picnic pavilions may be reserved up to 11 months in advance for a fee. Unreserved picnic pavilions are free on a first-come, first-served basis.