One of my clients is a bay area yacht charter company which means I've been spending a number of days at sea this summer crusing around the beautiful bay. In all of my 20+ years of living in the San Francisco Bay Area I've never tired of the incredible beauty surrounding me here... it's constantly stimulating and inspiring and being on the water only magnifies the experience.
Also, the majority of SF landmarks are visible from the water: Alcatraz, Palace of Fine Arts, Transamerica building, the Ferry Building, Coit Tower, the Golden Gate bridge, the Bay Lights installation on the Bay Bridge... and no two days on the bay are alike with the swiftly moving fog and changing light. In other words, it's a photographer's dream. :)