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Hikes
United States
New Jersey

Union County

The best walks and hikes in Union County

4.9

(49)

1,105

hikers

45

hikes

Hikes in Union County explore a landscape of dense woodlands, winding rivers, and rolling hills. The region's park system, centered around the 2,200-acre Watchung Reservation, provides a network of trails through varied natural environments. Most routes follow well-defined paths with gentle elevation changes, offering options for a range of fitness levels.

Best hiking trails in Union County

  • The most popular hiking route is Watchung Reservation History Trail loop — Mountainside, a 6.2 mile (9.9 km) trail that takes about 2 hours 40 minutes to complete. This route passes several sites of historical interest within the reservation.
  • Another top favourite among local hiking enthusiasts is Sierra Trail loop — Watchung Reservation, a moderate 9.5 mile (15.3 km) path. The trail navigates the varied terrain of the reservation's woodlands and hills.
  • Local hiking enthusiasts also love the Lake Surprise loop — Watchung Reservation, a 2.0 mile (3.2 km) trail leading through woodland around the lake, often completed in about 50 minutes.
  • Hiking in Union County is defined by extensive woodlands, lakeside paths, and riverside trails. The network of routes provides many easy hikes for beginners and families, as well as moderately challenging options.
  • The routes in Union County are highly rated by the komoot community with an average score of 4.9 stars from more than 30 reviews. More than 600 hikers have used komoot to explore Union County's varied terrain.

Last updated: April 26, 2026

20

hikers

#1.

Nomahegan Park Loop

4.16km

01:03

10m

10m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

10

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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11

hikers

6.15km

01:36

40m

40m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

7

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

6

hikers

3.72km

00:57

10m

10m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

2

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

1

hikers

2.37km

00:36

0m

10m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

1

hikers

6.50km

01:41

40m

30m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Popular around Union County

Hiking around Westfield

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Tips from the Community

Me
July 12, 2025, Watchung Reservation

while a steep climb, great roads through nature with lots of nooks and cranies to explore.

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Me
July 12, 2025, Lower Echo Lake

generally lovely ride along some lakes, with access to bike friendly trails.

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Oscar
June 29, 2025, Bikeway

use caution. sharp turns, narrow trail, people walking.

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Andrus
August 19, 2024, Lower Echo Lake

One of a pair of lakes in Echo Lake Park, Lower Echo Lake is a popular year-round destination. Pedal boating and fishing bring in visitors during the warmer months, while ice skating becomes available as the temperature drops.

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oliviakellis
February 22, 2024, Badgley House

Throughout its 250-year history, the Badgley House served various purposes, from a residence to a stable and garage. Around 1907, it was relocated and repurposed as a barn for a riding stable until the 1940s. Tragically, an arsonist's fire in 1984 destroyed the house. Today, only a depression in the nearby Scout Camping Area lawn marks its original location.

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Jamie S.
February 22, 2024, Watchung Reservation

The Watchung Reservation is a vast parcel of protected land in Mountainside, New Jersey. There are hiking trails, parks/picnic areas, playgrounds, a Nature Center, an abandoned village, and a lake.

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oliviakellis
February 22, 2024, Drake Farm House

Discover the remnants of the Drake family homestead at Drake Farm House. Once the heart of their farming endeavors in the early 20th century, this site holds historical significance. Despite the area's integration into the county park, traces of their legacy endure amidst the natural surroundings.

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There are nice scenic views of the surrounding woodlands and Blue Brook to be had from here. There is also a nearby car park too, so you could start your ride from here. There are nearby trails to do and the hilltop paved loop on Watchung Reservation is also a very popular short ride.

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Frequently Asked Questions

Are there any easy, beginner-friendly hikes in Union County?

Yes, Union County has many options for beginners and casual walkers. Most of the 26 trails in the area are rated as easy. For a very gentle and short walk, the Briant Park loop is a great choice, covering just over a mile on flat terrain.

What are some good options for family-friendly hikes?

Many parks in Union County are well-suited for families. The Sensory Trail in Mountainside is a popular, accessible trail designed to engage the senses. For a pleasant walk with varied scenery, consider the Warinanco Park loop from Roselle, which offers wide paths and open spaces.

Are dogs allowed on the hiking trails?

Yes, many trails in Union County are dog-friendly, but they must be kept on a leash. Watchung Reservation is a popular spot for dog walkers, and the Sensory Trail is particularly well-regarded by dog owners. Always check specific park regulations before you go.

Can I find any challenging hikes in Union County?

The trails in Union County are primarily easy to moderate, with rolling hills rather than steep mountains. While there are no officially designated 'difficult' hikes, you can find a good workout on longer routes. The Sierra Trail loop is one of the more challenging options, covering about 9.5 miles with over 700 feet of elevation gain.

What is the parking situation like at Watchung Reservation?

Watchung Reservation has several parking areas, which are generally sufficient for visitors. Key lots are located near the Trailside Nature & Science Center, Lake Surprise, and the Deserted Village of Feltville. On sunny weekends, popular trailheads can fill up, so arriving earlier in the day is recommended.

Are there any hikes with waterfalls in the area?

While Union County's landscape is more focused on woodlands and rivers, the nearby South Mountain Reservation in Essex County is famous for Hemlock Falls. Many hikers combine visits to both reservations. Within Union County, you'll find scenic water views along the Rahway River and around the area's various ponds and lakes.

How do the trails at Watchung Reservation compare to South Mountain Reservation?

Both are excellent choices for hiking near the area. Watchung Reservation is known for its extensive and varied trail network, including historical sites on the History Trail and the large Lake Surprise. South Mountain Reservation, in neighboring Essex County, is slightly more rugged and is famous for features like Hemlock Falls and the whimsical South Mountain Fairy Trail.

What is the best time of year to hike in Union County?

Hiking in Union County is enjoyable year-round. Spring brings blooming wildflowers, and summer offers lush green forests, though it can be humid. Autumn is a local favorite for its spectacular fall foliage, especially in Watchung Reservation. Winter provides a quieter experience, with opportunities for cross-country skiing on some trails if there's enough snow.

Are there any circular walks available?

Yes, loop trails are very common in Union County's parks. This allows you to start and end at the same point without retracing your steps. A great example is the Lake Surprise loop, a popular 2-mile circuit in Watchung Reservation.

What do other hikers enjoy most about Union County?

The area is highly rated by the komoot community, with an average score of 4.9 stars. Hikers often praise the well-maintained and clearly marked trails within the extensive park system, particularly in Watchung Reservation. The variety of scenery, from dense woodlands to peaceful lakeside paths, is also frequently mentioned.

Are there any good trails for birdwatching?

Hawk Rise Sanctuary in Linden is a prime destination for birdwatchers. This reclaimed landfill has been transformed into a thriving wetland habitat with boardwalks and trails offering excellent opportunities to spot various bird species. The paths around the lakes and rivers in other county parks are also good spots for observing waterfowl.

Can I get to any trailheads using public transport?

Accessing trailheads directly via public transport can be challenging, as most are designed for car access. However, some parks, like Warinanco Park or Nomahegan Park, are located in more urbanized areas and may be reachable by a combination of NJ Transit trains or buses followed by a short walk or rideshare.

Most popular routes in Union County

Easy hikes in Union County

Most popular attractions in Union County

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Check out more Hikes throughout Union County below and find the perfect route in your destination.

New ProvidenceSpringfieldCranfordFanwoodMountainsideRahwayGarwoodRoselle ParkConnecticut FarmsKean UniversityKenilworthUnionRoselleElizabethLindenVauxhallSummitPlainfieldWestfield

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