Flying
Automobile Clubs - Auto Racing
- Aircraft
- Briles Wing & Helicopter - Mill Valley
- Helicopter Charter and Sightseeing.
- Also see Transportation
- Hang Gliders
- Marin County Hang Gliding Association - Mill Valley
- Auto Clubs
- Antique Automobile Club - San Rafael
- Golden Gate Region / Local old car hobbyist group.
- Porsche Club of America - San Rafael
- Redwood region club.
- Briles Wing & Helicopter - Mill Valley
Automobile Racing