Adults have the opportunity to participate in swimming , racquetball , league basketball and volleyball and exercise classes . Brillion offers numerous recreational opportunities to it's citizens. Brillion has four parks, which encompass approximately 31 acres. These parks provide a variety of amenities such as shelters, picnic areas, baseball diamonds, playground equipment, and open amphitheater, lighted tennis courts, sand volleyball courts, a concession stand and rest areas. The Brillion Nature Center has trails and picnic area.
Trails are open to cross country skiing in the winter.
The Conservation Club offers trap, archery, snowmobile trails and cross country skiing. They also offer a club house for public use as well as club functions. Brillion is a shore distance from the Calumet County Park System . High Cliff State Park and Point Beach State Park are a short distance away. Open water and ice fishing are available at area lakes within 3 miles of the City.