guarding the Sharkfest and Alcatri 2007

paddlers raise their paddles to signify that they have a swimmers who needs a ride in...

and the SFPD or another support craft picks up the swimmer...

Most of the paddlers form a start line and the swimmers go towards it for the start:

and they are off...

lifeguards at the finish line:

also of interest: Escape from Alcatraz 'Sharkfest' swim volunteering

Tips for guarding open water swims

Group photos of De Anza volunteers at these races since 2000 are at: Alcatraz group photos