Rode the
Nashua River Rail Trail with my two kids last weekend. We started in Nashua, NH, and made the ~26 mile round trip to Ayer, MA and back in a little over 2½ hours. It was a really nice, casually-paced ride on a trail that we've never taken before that was mostly flat, and primarily passed through forests and wetlands.
We discovered, however, that much of what appears to be a river and ponds alongside the trail on Google Maps is actually swampland. The majority of our ride time was during off-peak mosquito hours, though, so that wasn't really an issue. But, at times the swamp stench was pretty bad, and virtually inescapable.
All in all, though, it was a good, fun ride that we're looking forward to taking again soon.