Explore the best rated trails in Cambridge, MA, whether you're looking for an easy walking trail or a bike trail like the Southern New England Trunkline Trail and Heritage Trail (NH) . With more than 110 trails covering 689 miles you're bound to find a perfect trail for you. Click on any trail below to find trail descriptions, trail maps, photos, and reviews.
The Assabet River Rail Trail is varied and enjoyable. The tricky thing about it is that it exists as two disconnected sections, separated by 2 miles of fairly busy road that's only suitable for confident road warriors. And that's a shame because both sections are marvelous and have much to recommend them.
The northern section runs from South Acton, through Maynard, and barely into Stow. It passes right through downtown Maynard, where you can find some decent food options and a bike shop. Proceeding south, it turns into a wide, hard-packed dirt road, and then finally ends as a slightly rougher dirt path. You can also easily access the Assabet River Wildlife Refuge from here, which has miles of wonderful off-road bike paths.
The southern section starts in Hudson and passes through the eastern end of its downtown, where there are more services and some worthwhile shops, including a bike shop. As of 2025, this part also connects to a new 8-mile eastbound section of the Mass Central Rail Trail. But if you continue on the Assabet River Rail Trail, you'll climb up into Marlborough -- it's pretty consistently uphill as you head south, but it's good exercise and has at least one excellent view. The trail more or less ends in the center of Marlborough, near the library, and where there are a few more spots you can grab a bite or get a drink.
So although this one isn't a straight shot, it's easily the most pleasant way to tour these towns and see what they have to offer. I hope finish it some day, and make it a single continuous Acton-to-Marlborough trail it's meant to be.
The Nashua River Rail Trail is terrific. It's long, smooth, well-maintained, and beautiful. Since it lies in a relatively rural part of Massachusetts, I find it to be a lower-key ride than its eastern cousin, the Bruce Freeman Rail Trail, but still well-used. There's less to see and do along it, but that might be exactly what you're looking for. Wholeheartedly recommended.
I ride my bike & walk this trail & downtown Derry is a great bike ride to Salem, 14-miles round trip and always free parking ¿
Great local path. It is all paved except for a short area near the Norton line. It has gravel for about 50 feet. Flat with lots of trees. Some finishing touches needed at the crossing but they have lights set up for safety. It’s about 13 round trip. Used by walkers, runners, bikers. Great place to teach kids how to ride a bike. Not too crowded.
This was my first time on this trail, and I really enjoyed it. The views were amazing but there was one big take away I have for next time. If you can, bring a bike with suspension. I had my road bike and REALLY felt the poor condition of the path. It was still very bike-able though.
I parked at NARA park and biked to Chelmsford. Today parked in same place and biked to west concord. Path is in great shape. Lots of trees, waterways, bridges, towns. Got to “the end” to discover that it actually goes several more miles which I’ll save for another day. I liked the poetry booth in West Concord- very original. I highly recommend this for scenery, safety, convenience of restaurants and bathroom stops. My favorite find this year.
Yesterday we decided to see if the trail, south of West Concord, was finally open. Last year, there was a locked gate under an overpass, and the only way to get past was to drag the bike down a hill. But, to our delight, the gate is open, and we biked all the way to Sudbury, nearly to Route 20. The new leg of the trail is glorious, beautiful scenery, well-marked, great resting spots, with blinking lights at road crossings. At the end, it connects to the Mass Central Rail Trail, itself under construction, but people were biking on it anyway through a gap in the fence. The only thing missing: portapotties!
We just got back from doing this trail yesterday.
We started at the north end at the Fort Hill Parking area.
There were plenty of spots to park when we arrived.
Being a very nice day, there were LOTS of people out enjoying the trail.
We only went as far as Police Cove Park where the trail was closed.
There was a detour route that continued but we decided that was enough for the day and headed back.
We did take the side trail out to the carousel, which we knew would be closed from checking on the web.
We were a little surprised that a trail so nice didn't have ANY restroom facilities. It wasn't easy to go into the woods between lots of poison ivy and people on the trail.
We'll go back and go from south to north and enjoy the rest of the trail
Just rode this trail today 5/27/25. My previous 5* review (2024) still stands with two additional comments. 1. There are virtually no port-a-potties on the trail. However, right near the southern end in Bristol there are some nice benches and just across Thames St is a very nice town facility. 2. The north end parking (India Point) is very busy and biking the first mile getting to the East Bay Path is involved with some unpleasant street portions. Use GPS to locate the parking at 66 Veterans Memorial Pkwy, East Providence. A much better option - in my opinion.
I've managed to ride portions of the trail between Fremont and Derry where it's open to summer OHRV on my hybrid bike (40mm gravel tires). It's not really pleasant as the trail is very sandy in sections to the point where I have had to walk my bike through sections. This is unfortunate because it's a great connector to the RT corridor that runs between Methuen, MA and Londonderry with the Rockingham Recreational trail from Manchester to Newfields. I get that summer OHRV use south of the North Woods is a scarce resource and that bikes do have the option of riding on the pavement. Except the shoulders of the roads are awful narrow. I could go on about the short sightedness of State and Local government but...
Great trail to ride on, well maintained crushed stone path. We got on at mile 13.4 in Portsmouth and rode to mile 6.8 then turned around and headed back. A lot of tree coverage which is nice for shade but not much variation in scenery. Not sure if there is more to see further south on the trail. That being said, it’s still a great place to get outside and exercise!
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