Had a business trip to San Francisco last week. Most folks flew out on Wednesday and came back on Friday, but I decided to stay into the weekend.
So on Saturday, I rented a Trek FX something from one of the many bicycle rental places that cater to tourists, went across the Golden Gate bridge, and then turned left:
That's the Golden Gate bridge below me in the background.
Then a quick turnaround, a brisk downhill to Sausalito, and lunch outside in the sun while waiting for the ferry back to San Fran. A lovely day, made all the sweeter by knowing that it was below freezing back home in Philly.