Celebrate Earth Day at Liberty State Park on April 21st with a free all-day event featuring food, rides, giveaways, vendors and live entertainment. There will also be a 5K race and Walk for Liberty State Park. This event will be taking place on the North Cove Field on Audrey Zapp Drive from 10AM - 4PM. Parking is available in the Ferry Lot. Visit the Hudson County Improvement Authority's website for details!