This excellent little enterprise, staffed by volunteers (who train kids from deprived backgrounds in bike mechanics while on the job), rents and repairs...

Yogic exercises based on the 'hot yoga' techniques of Bikram Choudhury. Bring a towel, though: the classes take place in a sweltering room.

Bikes are rented to those with a yen for cycling the 8 miles from Fisherman's Wharf over the Golden Gate Bridge to Sausalito. Guided tours are also offered.

Cal Adventures rents out 15ft (4.5m) Coronados on the South Sailing Basin. Those without proper certification must be accompanied by an instructor.

One of the Bay Area's best locations for hiring and buying kayaks and seagoing gear. Lessons and day trips navigate the nearby Oakland Estuary.

DLX is the mother of all skateboarding shops in SF, and has a comprehensive range of clothes, boards, accessories and stickers.

San Francisco has plenty of YMCAs, but this is the only one that boasts a waterfront view. A day pass will give you access to aerobics classes, free...

The Golden Gate Park Course is a handsome little nine-hole par-three municipal number, reasonably priced and located above Ocean Beach.

Bikes, rollerskates and in-line skates are all available for rent (helmet and knee and elbow pads included), and you can take skateboarding lessons.

Cruisey, with a steam room that can only be described as steamy. Friendly staff and a fierce sound system make Gold's popular with both gay boys and lesbians.

The Castro's most notorious men-only sweat palace, well laid-out, seriously steamy and with enough weights for even the most ardent muscle man.

Arguably one of the best municipal courses in the country. Tee times are available up to 30 days ahead with a $10 surcharge. Also here is the nine-hole,...