Eric is 100 percent knowledgable about SF. The tour was FABULOUS! We were a little cold on a 50 degree day but no worries - Eric provided us with blankets to keep warm and a stop for hot chocolate kept us very cozy. His photo opportunities are perfect and we loved his one liners for a laugh here and there. He showed us everything we wanted to see plus SO MUCH MORE! Don't hesitate to book SF Adventure Tours! It's the best!