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Hiking trails & Routes
United States
New York
Suffolk County
Kings Park

Nissequogue River Loop

Easy

4.9

(3114)

17,466

hikers

Nissequogue River Loop

01:48

6.72km

80m

Hiking

The Nissequogue River Loop offers a truly distinctive hiking experience, blending serene riverfront views with the intriguing, overgrown remnants of the Kings Park Psychiatric Center. As you walk this easy 4.2-mile (6.7 km) route, which takes about 1 hours and 47 minutes to complete with only 250 feet (76 metres) of elevation gain, you'll traverse diverse terrain from wetlands to hardwood forests, all while enjoying glimpses of the Nissequogue River and Long Island Sound. It's a journey through nature and history, perfect for those who appreciate a unique atmosphere.

Planning your visit to the Nissequogue River Loop is straightforward, as the trail is located within Nissequogue River State Park, which provides convenient parking. This family-friendly route is generally accessible for all skill levels, making it an excellent choice for a leisurely outing. While specific warnings are not typically needed, arriving earlier in the day can help ensure a parking spot during peak times.

Beyond its natural beauty, the park is a designated State Bird Conservation Area, home to over 150 species of birds, making it a prime spot for wildlife observation. The historical aspect, with its "apocalyptic" abandoned buildings, provides a fascinating contrast to the peaceful natural surroundings, offering a unique blend of ecological significance and historical intrigue that sets this trail apart from others in the region.

Last updated: June 9, 2026

Waypoints

A

Start point

Parking

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1

3.10 km

Nissequogue River

Highlight • River

The view is definitely worth the small detour from Sunken Meadow Road!

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B

6.72 km

End point

Parking

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Way Types & Surfaces

Way Types

3.73 km

2.26 km

603 m

139 m

Surfaces

4.35 km

1.46 km

914 m

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Elevation

Elevation

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Weather

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Today

Monday 6 July

22°C

19°C

97 %

Additional weather tips

Max wind speed: 27.0 km/h

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Frequently Asked Questions

How long does it take to hike the Nissequogue River Loop?

The Nissequogue River Loop is approximately 6.7 kilometers (4.2 miles) long. Most hikers can complete it in about 1 hour and 47 minutes, depending on their pace and how often they stop to enjoy the scenery.

What is the terrain like on this trail?

The trail offers a varied terrain, including both paved and unpaved sections, hiking paths, and footpaths. You'll pass through diverse habitats like woodlands, grasslands, and marshlands, with some bluffs offering elevated views.

Where can I park to access the Nissequogue River Loop?

Parking is available within Nissequogue River State Park, where the loop is primarily located. Look for designated parking areas near the park's entrance or welcome center for convenient access to the trailheads.

Is the Nissequogue River Loop dog-friendly?

Yes, dogs are generally permitted on the trails within Nissequogue River State Park, including the Nissequogue River Loop. However, they must be kept on a leash at all times, and you are expected to clean up after your pet.

What are the best times of year to hike this loop?

The Nissequogue River Loop is enjoyable year-round. Spring and fall offer pleasant temperatures and vibrant foliage or blooming wildflowers. Summer is great for birdwatching, while winter can provide a peaceful, snowy landscape, though conditions may vary.

Are there any entrance fees or permits required for Nissequogue River State Park or Sunken Meadow State Park?

While the Nissequogue River Loop is primarily in Nissequogue River State Park, which typically does not have an entrance fee, nearby Sunken Meadow State Park may have vehicle use fees, especially during peak season. It's always a good idea to check the official New York State Parks website for the latest information on fees and regulations for both parks before your visit.

What interesting sights or landmarks will I see along the way?

Beyond the beautiful waterfront views of the Nissequogue River and Long Island Sound, you'll encounter the unique and atmospheric abandoned buildings of the former Kings Park Psychiatric Center. The King's Park Bluffs also offer picturesque vistas, and the park is a designated bird conservation area, so keep an eye out for various bird species.

Does this trail connect with other hiking paths?

Yes, sections of the Nissequogue River Loop overlap with or run parallel to parts of the Long Island Greenbelt Trail, offering opportunities to extend your hike if you wish to explore further.

Is the Nissequogue River Loop suitable for families with children?

Absolutely! This trail is generally considered an easy hike with minimal elevation gain, making it suitable for most fitness levels, including families with children. The varied scenery and interesting historical elements can keep younger hikers engaged.

Can I find food or coffee nearby after my hike?

Yes, the towns of St. James and Smithtown are a short drive from Nissequogue River State Park and offer a variety of cafes, restaurants, and other amenities where you can grab a bite or a coffee after your hike.

What kind of wildlife might I see on the trail?

As a designated bird conservation area, the park is excellent for birdwatching, with potential sightings of orioles, yellow warblers, egrets, and osprey. You might also spot other local wildlife common to woodland and marshland habitats.

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