The Hop On Hop Off San Francisco tour is one of the most famous tourist attractions in the entire United States and it’s no surprise that so many people from all over the world come to see this amazing city! The buses are filled with amazing sight seeing opportunities and there really is something for everyone to enjoy on these tours, whether you want to explore some neighbourhoods or just take a relaxing ride along beautiful coastlines, there will be something for everyone. San Francisco Sightseeing Tours