Tuesdays, June 7-August 30, 6 p.m. These guided bike rides are designed to appreciate how the land and waters were before the city was founded, and to revisit the natural and built environments of 1835 Rochester. Cancellations due to weather will be made at start time on site. All rides begin promptly at 6:00 p.m. Helmets required for bike rides. Cancellations due to weather will be made at start time at the site of the ride. Seneca and Turning Point…