Join this self-guided audio tour of San Francisco and go far beyond the tech city to discover the port transformed by the American artisan chocolate revolution. On this walking tour, you'll explore how Gold Rush prospectors, Swiss immigrants, and modern bean-to-bar pioneers built a chocolate capital from the ashes of earthquakes and buried ships. Beginning at the iconic Ferry Building, you'll stroll up historic Market Street, stop at celebrated chocolatiers like Dandelion and Teuscher, and walk over the hulls of a Gold Rush fleet buried beneath your feet. Learn the professional “Melt” technique to taste chocolate like an expert, hear the real story behind Mary See's chocolate empire, and sample the world's first Champagne Truffle. Bring your walking shoes and your sweet tooth and by the end, you'll never look at a truffle the same way again.