Join our Volunteer Patrol. Patrol Volunteers act much like a neighborhood watch program on open space preserves. We have Volunteer Mounted Patrol on horseback, Trail Watch on foot, and Bike Patrol on bicycles. Volunteers will be trained in how to assist the public and act as extra eyes and ears for rangers. Members are responsible for reporting information after they visit open space preserves. This program requires a high level of commitment and is only for adults over the age of 18. If you are interested in the program, please contact Volunteer Coordinator Greg Reza at (415) 473-3778 or GReza@marincounty.org by Friday, October 5.