Grab your coat and a handful of glitter, and you're good to go in San Francisco. It's where holiday antics and disco theme nights erupt spontaneously, and when all that damp fog and sheer delight hits you, this town will give you goose bumps.Colour highlights chapterCoverage of San Francisco's lesser-known jewels ? Potrero Hill, Japantown and Cole ValleyBest dining options selected by local food writerNine walking and cycling tours