San Francisco

Birding:
Farallon National Wildlife Refuge
Angel Island State Park
The Presidio
Land's End
Cliff House and Sutro Baths
Candlestick Point State Recreation Area
Golden Gate Park
Lake Merced
San Bruno Mountain State and County Park

Youth on Course:
Lincoln Park GC: anytime weekends, after noon weekends
Golden Gate GC: anytime $3
TPC Harding Park: M-Th after 2, after 4 in summer
TPC Harding Park Fleming Course: M-F $2, Sat-Sun $5
Gleneagles GC: anytime $5 9 holes
Sharp Park GC:

Hiking:
Montara Mountain: 6.3 miles one way, peakbag
Sweeney Ridge: 4.8 miles,
Milagra Ridge: 1.5 miles, Farallon Islands
San Andreas Fault: 3.5 miles one way, fossils, beach
San Bruno Mountain: 4.9 miles
San Francisco's Pacific Shore: 5.5 miles one way
Golden Gate Bridge: 2.4 miles
Point Bonita Lighthouse: 1 mile