4.6
(9163)
14,018
riders
03:36
57.4km
590m
Cycling
Cycle the difficult 35.7-mile Penobscot Narrows Bridge loop from Belfast, Maine, for coastal views and observatory panoramas.
Last updated: February 26, 2026
Tips
Includes movable bridges
Check opening times.
After 1.40 km for 12 m
After 56.3 km for 12 m
Waypoints
Start point
Parking
Get Directions
347 m
Highlight • Settlement
Tip by
12.9 km
Highlight • Forest
Tip by
30.2 km
Highlight • Bridge
Tip by
36.6 km
Highlight • Beach
Tip by
50.8 km
Highlight • Beach
Tip by
57.4 km
End point
Parking
Way Types & Surfaces
Way Types
21.1 km
19.3 km
16.2 km
794 m
< 100 m
Surfaces
30.9 km
26.1 km
400 m
< 100 m
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Elevation
Highest point (110 m)
Lowest point (0 m)
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Weather
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Sunday 5 July
27°C
16°C
-- %
Additional weather tips
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This route was planned by komoot.
The loop originates from Belfast, Maine, which serves as a convenient starting point. While specific parking details for the entire loop aren't provided, you can typically find parking in downtown areas of towns like Belfast. For visiting the Penobscot Narrows Bridge and Observatory, there are dedicated parking facilities available.
Information regarding whether the entire Penobscot Narrows Bridge loop is dog-friendly for cyclists is not explicitly detailed. If you plan to bring a dog, it's advisable to check local regulations for specific sections of the route, especially within towns or state parks like Moose Point State Park, which may have their own rules.
The best time to cycle this route is generally during the warmer months when the weather is pleasant for cycling and the scenic coastal views are at their best. Spring through fall would offer ideal conditions to enjoy the landscapes and attractions like the Penobscot Narrows Bridge and Observatory.
Cycling the Penobscot Narrows Bridge loop itself does not typically require permits or fees. However, if you plan to visit specific attractions along the way, such as the Penobscot Narrows Observatory or Moose Point State Park, there may be separate entrance fees or admission costs for those sites.
The loop primarily features paved surfaces, with approximately 30.9 km of asphalt and 26.1 km of paved roads. There are also about 400 meters of cobblestones. While the main route is mostly paved, some longer variations in the general area might include unpaved sections, which could be more challenging. Expect low-grade ups and downs throughout the ride.
The difficulty of the loop can vary depending on the specific route chosen. The 57.4 km version with about 590 meters of elevation gain is classified as a 'Hard bike ride' requiring 'Very good fitness'. Shorter routes (up to 2 hours and 500 ft elevation) are suitable for any fitness level, while longer rides (up to 5 hours and 1500 ft elevation) require good fitness.
The route offers breathtaking views of Penobscot Bay and Maine's landscapes. Key highlights include the iconic Penobscot Narrows Bridge and Observatory, which provides 360-degree panoramic views up to 100 miles. You'll also pass through Downtown Belfast, and have opportunities to see Moose Point State Park and Sandy Point Beach.
Yes, the route incorporates sections of several other trails. Notably, it follows a significant portion of the East Coast Greenway (ME). You'll also find smaller segments that overlap with trails like the Harbor Walk, Armistice Bridge, and the Belfast Rail Trail.
While the full 57.4 km loop is considered difficult, shorter variations exist that are 'Great for any fitness level' and could be suitable for families. For an easier, family-friendly option, consider exploring the nearby Belfast Rail Trail, a 2.3-mile scenic pathway with gentle slopes, which is separate from the main loop but in the same area.
Starting in Downtown Belfast, you'll find various amenities, including cafes and shops, for resupply before or after your ride. Along the loop, especially in towns or near popular attractions, there may be additional options, but it's always wise to carry sufficient water and snacks.
The most unique experience is undoubtedly cycling across the Penobscot Narrows Bridge and then ascending to the Penobscot Narrows Observatory. This observatory is the world's tallest public bridge observatory, offering unparalleled 360-degree views of Fort Knox, the Camden Hills, Penobscot Bay, and even Mount Katahdin on a clear day.
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