Down St. John’s Street we ride, ringing our bells, forcing the throngs of visiting Spanish students to part as we pass. At Bridge Street, we navigate a right turn, which is tough when you are riding on the left side and have to avoid a trolley and masses of tourists. But we plow through, claiming our share of the road. We head down narrow Thompson Lane, avoiding potholes and pedestrians, and within minutes we are on Jesus Green and the bike path. “Phew,’’ says Sandhya. And that’s it for drama. In single file, we ride the path beside the Cam. Then we veer from the river and cycle beside meadows and 17th-century stone farmhouses. “So lovely,’’ my colleague Lisa says. We relax on a green before heading back.