The park is situated on a former island in the Fox River that was connected to the mainland through river channel management.
It serves as a critical connection point for the Fox River State Trail, which spans over 25 miles through Brown County.
The park's location on the riverbank makes it a popular site for seasonal fishing and informal water access.
Green Isle Park is a 17-acre municipal recreational area situated directly along the east bank of the Fox River in Allouez, Wisconsin. The park features dedicated facilities for tennis, pickleball, volleyball, and baseball, serving as a primary community sports hub. A significant portion of the grounds is designated for passive recreation, including numerous picnic shelters equipped with grills and tables. The park serves as a formal trailhead for the Fox River State Trail, providing direct non-motorized access to the regional path system. Natural features include expansive open green spaces and direct waterfront access to the river. The site includes a modern playground facility suitable for children and integrated restroom facilities.
The wooden overlook bridge near the river edge provides an unobstructed view of the Fox River.
Bring a portable chair if you plan to watch youth sports games, as bleacher seating is limited.
Check the official Village of Allouez website if you intend to host a gathering, as shelters require reservations for exclusive use.
Carry insect repellent during summer evenings, as proximity to the river can increase mosquito activity.
Do not leave food or trash unattended at picnic sites to avoid attracting local wildlife.
Park facilities, including restrooms and water stations, typically close during the winter months.
Leash laws are strictly enforced for pets; carry waste bags. Alcohol use requires a permit in designated areas.
