Adventure Activities in San Francisco -- Try if You Dare

Getty Images

If you're looking for an adventure activity in San Francisco, you won't have to look far. Since the founding of Mission Dolores in 1776, people have flocked to California's exciting city of San Francisco, in the hope of finding gold, freedom, compassion and, ultimately, adventure. The city's breathtaking views, intellectual and creative curiosity and foodie culture hold out open arms to all who wish to participate in daring activities and travel adventures. But, be warned: even some locals find the following five ideas a bit extreme.