Urban Trails: East Bay offers 40 routes for walkers, runners, and hikers, with an emphasis on getting out and getting fit in your own backyard. Expert local hiking guide Alexandra Kenin offers a wide range of options, from leg stretchers overlooking the Bay Area at Tilden Regional Park to an afternoon stroll through the wineries around Jack London Square to a 6-mile hike along the slopes of Mount Diablo to spot seasonal waterfalls. Other features include: