The Nashua River bike trail is kinda boring but shady, flat, and paved. I turned around at the 10 mile mark (the trial is 13 miles I think). The trails goes through Pepperell center (ice cream). A nice thing about the trail is it's slightly uphill going south of Nashua, and then downhill on the return trip. Plenty of bikes and walkers out, one cross country skier. I only got passed twice, by girls There was a research team out checking fly traps. Plenty of evidence of horses. The Chipmunks play dare with you, scooting out of the way only at the last minute. There seems to be several side trails. The bike now has over 100 miles on it, and I was supposed to take it in for a checkup at 30 miles… oh well. No word on Mother's bike yet.