Welcome to the latest edition of Cycling San Diego which, along with Cycling the Trails of San Diego, has been the region’s most comprehensive and detailed guide to superb cycling experiences at all skill levels for three decades. The current edition, now in full color with abundant maps, features 67 rides with opportunities to experience the four natural areas of the county: Urban and Coastal, Rural and Foothills, Mountains, and Desert. Very few regions in America feature such geographical and biological diversity within a single county. In addition to route descriptions, this publication offers valuable sections on cross-country routes through the region, grand round-robin tours of the county, suggested reading, a listing of current cycling retailers, and inter-modal transportation opportunities for cyclists (plus walkers, commuters, and hikers) via train, trolley, and bus.