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Routes
Running trails & routes
United States
Massachusetts
Suffolk County
Winthrop

Deer Island loop from Belle Isle Marsh Reservation

Moderate

4.6

(2895)

16,398

runners

Deer Island loop from Belle Isle Marsh Reservation

01:22

13.1km

90m

Running

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: January 12, 2026

Waypoints

A

Start point

Bus stop

Get Directions

2.52 km

Yirrel Beach

Beach

2

5.67 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.

Tip by

B

13.1 km

End point

Bus stop

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Way Types & Surfaces

Way Types

6.88 km

5.59 km

506 m

122 m

< 100 m

Surfaces

9.48 km

2.90 km

714 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

Powered by Foreca

Today

Wednesday 20 May

32°C

21°C

72 %

Additional weather tips

Max wind speed: 29.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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