Riding through the woods of Watertown and Waltham

On Saturday I rode my bike from Soldiers Field Road, across from WBZ-TV, to the end of the Charles River trail in Waltham center. I hadn’t previously made it past Bridge Street in Watertown, so I had no idea that, as you keep traveling west, you’re largely in the woods, riding on dirt paths and elevated wooden sections. It was hot — low 90s by the time I got back — but mostly shaded and not that humid. I did a 15-mile loop; next time, I’ll try riding from home, which might bring it up as far as 25 miles.