Nearly perfectly flat - good compact ground - three nice bridges - very little other traffic.
We had two kids, 8 and 11, with medium bike skills - easy going here so was all fun and no hassle. We started in the middle (parking area) and went to each end and back. Total 6 miles, took 1 hr due to stops to view wildlife.
Only drawback: we wanted more miles !!

This is a lovely, well maintained trail! Heads up—as of late June the section from Cheshire to Adams is closed for repair until October 2020. Still the stretch from Cheshire to Pittsfield is all new and a really pleasant, scenic ride.

Nice shady trail along the River. Loved the sound of the river along the trail. We stopped at the train depot in Tilton. It does continue but, looks like your in the street.

Beginning at the eastern point in Northampton, this is not well signposted. It connects with the western end of the Norwottuck trail heading west by turning right (turning left goes to the Manhan trail) at the T junction once you have gone through a tunnel having crossed the Connecticut River and crossed a couple of roads. It takes you to Florence / Leeds including the Look Memorial Park in Leeds. Heading west, having turned right onto this trail from the Norwottuck trail it goes behind a commercial building and seems to stop. At this point you come out between these buildings facing a road. Cross this road at the traffic lights and go through the Stop and Shop parking lot to the left of the supermarket building. There is an official gap in the fence where you can join the rail trail. It is not marked. Follow the trail to the right. It is a little bumpy with roots to start with but is a nice scenic paved trail.

Generally this trail is in good condition, paved all the way, few lumps and bumps with tree roots etc. The bit that isn't marked well is where it joins the Norwottuck trail in Northampton. If you start on the Norwottuck trail heading west this trail begins by turning left once you have gone through a tunnel having crossed the Connecticut River and crossed a couple of roads. The other direction - that also is not marked - takes you to the Northampton bike path to Florence / Leeds - more about that in the respective review for that bike path. The Manhan trail crosses over Main Street right by the railroad station and takes you through Northampton - a good interesting ride on to Easthampton and Southampton where it dead ends.

Starting in the Nashua parking lot (northern terminus) head South. In a few miles, you travel through the town of Pepperell. Another 5 miles, you reach Groton center. The 12 mile trail ends in Ayer. Along the way, you ride parallel to the Nashua River and Pepperell Pond through woods and farms. You may see beaver lots of birds. It’s a pleasant and easy ride you are sure to enjoy.

This trail is great on a hot day, with most portions being shaded; a few open areas get pretty warm, but they are quickly ridden through. 12 miles to Ayer, where a small shady park next to the Town Hall provides a nice spot for a picnic lunch. You can take a slow, steady pace or cruise through at a good clip as you please; just be aware of the other cyclists (some on training wheels), skaters, and walkers. A bit more crowded than usual today (Thursday before the 4th of July), but not awful. One of our favorites!

This is the first trail that I have ridden that is split into two sections. The second section runs along multiple commercial buildings and is adjacent to the Merrimack river. There are many places on the second part to stop and view the river as there are many places to sit. The most interesting thing is that there was a Mulberry tree growing out of the middle of a stone wall (which is 30 feet down to the river) and which had a lot of ripe berries on it within reach. If I can figure out how to post a picture, then I will do so of the tree. Although not adjacent to rails, I would recommend this trail.

This section has been open for a year or two now (June 2020) and is excellent condition all along following the power lines. Approximately 4 miles long end to end with nice smooth black top ideal for cycling, now also attracting walkers, skaters etc. There are footpaths into the adjacent woods.
There is a car park at the Wayland end easily accessible from the intersection of rte 126 and 27. At the eastern end the last access point is at Church Street, Weston. Further east it just dead ends at a decrepit bridge.