Concord Bike Tours, Concord

After years of teaching preschool, Sue Merlino graduated to a new passion in life when she turned her enthusiasm for bicycling and her hometown into a career exploring Concord's history atop a two-wheeler. Her resulting brainchild, Concord Bike Tours, wends through the heavily treed lanes of the city, elucidating the history of notable locations such as the Emerson House, the abodes of lesser-known abolitionists, and the site where Thoreau kissed his first tree. Four regularly run tours take up to 10 bicyclists on 2.5- to 3-hour journeys, with optional sidecars for children younger than 8 provided. Sue and her family will also plot custom trips for clients interested in longer rides, different scenery, or preparing for a Jeopardy! audition.