Treasure Island

M and 8th Street
Treasure Island, CA

Take the Bay Bridge to San Francisco
Stay left on bridge to exit on Treasure Island just before mid-bridge
Continue on exit ramp north and go through main gate (no other choice)
Take a right just past gate on California
Go west until California ends at M Street
Turn left (north) on M and go past 4th St (where there is also a field) to 8th
Softball field is on right and parking is best on 8th

Link to MapQuest:
http://www.mapquest.com/directions/main.adp?bCTsettings=1