Things to do

Mountainside offers a variety of outdoor recreation, family activities, and community attractions for residents and visitors to enjoy.

🌳 Watchung Reservation

One of the largest parks in Union County, the Watchung Reservation offers miles of hiking and walking trails, picnic areas, horseback riding trails, fishing, and scenic nature views. The reservation spans more than 2,000 acres and is a popular destination for outdoor recreation year-round. 

🦉 Trailside Nature & Science Center

Located within Watchung Reservation, this nature museum features interactive exhibits, live animal displays, and educational programs focused on wildlife and environmental education. It is a great destination for families and school-aged children. 

🥾 Hiking & Nature Trails

Mountainside has numerous scenic trails for hiking, walking, and running, including the popular History Trail and Sierra Trail within the reservation. These trails provide opportunities to explore forests, streams, and wildlife. 

🎬 AMC Mountainside Movie Theater

Enjoy the latest movies at the local theater featuring comfortable seating and a full concession stand.

🌊 Echo Lake Park

Located nearby, Echo Lake Park offers walking paths, picnic areas, playgrounds, and beautiful lake views.

🏊 Mountainside Community Pool

The Mountainside Community Pool hosts swimming, lessons, summer events, and family activities throughout the season. 

📚 Mountainside Public Library

The library offers books, educational programs, events, and community resources for residents of all ages.