Three hours of purposeful walking around the Embarcadero, Financial District, and Union Square while inhaling a gluttonous amount of candy confections is precisely our idea of getting fit and happy. Some fabulous highlights of the Bay Area chocolate boom that has taken off over the past few years may be found in these areas, from the transcendent bonbons of Recchiuti in the Ferry Building and the exciting start-up Tcho (which makes chocolate from bean to bar) to the otherworldly, obsessive international selection of rare treats at Fog City News — all of which are among the stops on this tour. The tours typically cost $48, and all the yummy tastings are included in the price. "Real" athletes beware: This may not exactly be the strenuous physical workout you crave, because the San Francisco Gourmet Chocolate Tour has a motto that states, "Exercise is a dirty word. Every time I hear it, I wash my mouth out with chocolate."