Brooklyn · Saturday, September 12, 2026
Park Pitch In: 9/11 National Service Weekend
Park Pitch In: 9/11 National Service Weekend on Saturday, September 12, 2026 at Prospect Park Alliance (Park). Cost: Free, Registration Required. Best for: tween.
9/11 National Service Weekend, held every September, is devoted to remembrance through charitable service. Join Prospect Park Alliance as we support this effort in a volunteer cleanup day. Volunteers will support the park in removing invasive and unwanted wild plants from the 9/11 Grove in Prospect Park. Appropriate for groups, teens and adults. Register…