210 Go Fish 
The SHS swimming pool scenes were filmed at the pool in the Physical Education Building at the University of Southern California. I tried several times to take photographs inside but wasn't allowed. Or rather, I could but only after getting permission from somebody who had an office across campus and even then would have had to have been supervised. I didn't have time for all that, so I just took some photos through the windows. Plus, the building houses the ROTC and is thus filled with current and future tools of US imperialism, so it's really creepy. You can see an interactive map of USC here.
Update: I went back on 02/09 and took some better shots which replaced most of the earlier ones.
5 Photos (taken June 26, 2008, updated 02/09)
Location: 3600 Watts Way, Los Angeles, CA 90089-0022 (approx)
How to get there: From the Natural History Museum, cross Exposition Blvd and head up Watt Way into the USC campus. The PE Building is opposite Cromwell field, and just north of the bookstore.
Mapquest here.
Google Earth Co-ordinates: 34 01' 16.44" N, 118 17' 10.34 W
