The Moraine Preservation Fund (MPF) is a non-profit, volunteer organization that supports Moraine State Park. The Fund has helped to develop important wildlife restoration projects like the Osprey and Barn Owl Reintroduction Programs, along with the creation of a Native Plant & Butterfly Trail near the center. MPF volunteers also participate in wildlife education classes at schools and for other interested groups to teach the public about barn owls.

MPF operates a gift shop and nature center located at McDanel's Boat Launch, which is just off the North Shore park exit on Rt. 422 in Portersville. The center also operates the Nautical Nature, a 45-passenger enclosed pontoon boat, and offers interpretive boat tours on Lake Arthur. Programs on the boat teach about the wildlife of Moraine and the development of the lake. The pontoon boat operates tours on a regular schedule throughout the summer which are open to the public, and the boat is also available for chartered tours guided by one of the MPF boat captains.

The center also offers boater safety classes to all volunteers, and sponsors the yearly Regatta on the Lake and the Annual Great Moraine Auction.