Echo Lake Park is one of 36 Union County parks that encompass 6,200 acres. This park is located in Mountainside, NJ and includes the following features: Fishing, Fitness Trail, Ice Skating, Multi-Use Path, Pedal Boats, Picnic Area (Reservable), Playground, Restrooms, Sledding, Snack Bar, Parking, Soccer and Softball Fields. There is also Echo Lake Dog Park and a September 11th Memorial.