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Routes
Hiking trails & Routes
United States
Massachusetts
Suffolk County
Winthrop

Deer Island Loop Trail

Easy

3.3

(25)

28

hikers

Deer Island Loop Trail

01:05

4.28km

10m

Hiking

Deer Island Loop Trail offers an easy hike with expansive views of Boston Harbor and the city skyline. You'll follow a paved path for much of its 2.7 miles (4.3 km), gaining a gentle 20 feet (6 metres) in elevation. This makes for a relaxed outing, typically completed in about 1 hour and 4 minutes. As you walk, you can spot planes landing at Logan Airport and observe the unique 150-foot-tall "egg-like" structures of the wastewater treatment plant, which surprisingly blend into the serene environment. Keep an eye out for local wildlife, including deer and various bird species, especially if you explore the unpaved interior paths winding through forests and wildflowers.

Planning your visit to Deer Island is straightforward, as the trail is open year-round from sunrise to sunset. You'll find parking generally available, making access easy if you're driving. If you plan to bring your dog, remember that the route is dog-friendly, but you must keep your pet on a leash at all times. Consider visiting during off-peak hours for a quieter experience, though the trail rarely feels crowded.

This trail is a highlight within the Boston Harbor Islands National Recreation Area, providing a unique perspective on the city and its surrounding waters. Beyond the main loop, you can discover additional unpaved trails that delve deeper into the island's natural landscape. It's a perfect choice for anyone seeking a peaceful escape with diverse scenery, from urban vistas to quiet wooded areas, all within easy reach of Boston.

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Boston Harbor Islands National Recreation Area

Waypoints

A

Start point

Bus stop

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1

1.95 km

Deer Island

Highlight • Viewpoint

Deer Island, in Boston Harbor, is known for its wastewater treatment plant and the Deer Island Prison. It's a critical part of Boston's infrastructure and also offers scenic views and recreational opportunities.

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B

4.28 km

End point

Bus stop

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Way Types & Surfaces

Way Types

3.97 km

264 m

< 100 m

Surfaces

3.08 km

823 m

228 m

107 m

< 100 m

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Elevation

Elevation

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Weather

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Today

Thursday 7 May

15°C

9°C

0 %

Additional weather tips

Max wind speed: 22.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Is the Deer Island Loop Trail suitable for beginners or those with mobility challenges?

Yes, the primary Deer Island Loop Trail is a 2.7-mile paved and flat pathway, making it an easy and wheelchair-accessible option perfect for walking, jogging, or bicycling. For those seeking more challenge, the island also features a 1.3-mile Hillside Trail with steep inclines and additional unpaved trails offering uneven terrain.

How long does it typically take to hike the Deer Island Loop Trail?

The main 2.7-mile loop typically takes around 1 hour and 5 minutes to complete, depending on your pace and how often you stop to enjoy the views.

What kind of views can I expect on the Deer Island Loop Trail?

You'll be treated to panoramic views of the Boston Harbor, the Boston skyline, and the Boston Islands. Specific viewpoints offer sights of Quincy Bay and spectacular close-ups of airplane landings and takeoffs at Logan Airport. The interior trails provide views of lush forests and wildflowers, with ten landscaped overlooks featuring interpretive signage.

What wildlife might I encounter on Deer Island?

The island offers opportunities for birdwatching and spotting occasional wildlife like deer, especially along the interior trails.

Is the Deer Island Loop Trail dog-friendly?

Yes, the trail is dog-friendly! However, please ensure your dog remains on a leash at all times.

What is the best time of year to visit Deer Island Loop Trail?

The trail is open year-round from sunrise to sunset, offering different experiences with each season. Spring and fall provide pleasant temperatures and beautiful foliage, while summer is great for clear harbor views. Winter can offer stark, beautiful scenery, but be prepared for colder, potentially windy conditions.

Are there any permits or entrance fees required to access Deer Island?

No, there are no permits or entrance fees required to access Deer Island. It is part of the Boston Harbor Islands National Recreation Area and is open to the public year-round.

Where can I park to access the Deer Island Loop Trail?

Parking is available on Deer Island itself. Follow signs for public access and parking areas once you arrive on the island.

What historical significance does Deer Island hold?

Deer Island has a rich and complex history. It served as an internment camp for indigenous people during King Philip's War and was a primary entry point for Irish immigrants fleeing the Great Famine, with over 800 individuals buried on the island. Today, it's also home to the second-largest wastewater treatment plant in the United States.

Are there any specific points of interest along the route?

Beyond the stunning harbor views, the trail encircles the island, offering glimpses of the prominent 150-foot-tall 'egg-like' sludge digesters of the wastewater treatment plant, which are a unique landmark. You'll also find ten landscaped overlooks with interpretive signage. Don't miss the Deer Island viewpoint for exceptional vistas.

What facilities are available on Deer Island?

Deer Island offers five miles of public walkways and trails and 60 acres of open space. It's a popular spot for sightseeing, picnicking, and fishing. While there are no cafes or shops directly on the island, you'll find amenities in nearby Winthrop or Boston.

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Trail Reviews

ScottKane
February 19, 2024, Deer island - Outer loop, no hills

You never go wrong with a trip to deer island. I saw the eiders again today

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