Well, I'm way over here in Iowa, but I can tell you that if you take the highway east out of Ventura, in less than an hour you'll be at one of the premiere shooting venues in the world, just outside Piru, CA. This is the location of the fabulous Steel Challenge match, and they run all sorts of various shooting competition at that place. Fantastic range.
I spent mucho time at the above mentioned ranges at Piru Cal. It is owned/operated by Mike Dalton aka ISI, etc. Great facility, great folks that run it, and a good bunch of shooters. there's a match almost every saturday, One week is std IDPA, another is for compact Guns, another is basically a revolver match. then there's steel challeng matches further up the same road also owned by Mike Dalton aka SCC, Steel challenge club.
For IPSC what's left of SWPL is now at the ranges at " Little Tujunga", off Osborne and I-5.
Any questions let me know. I shot there for over 15 years before relocating to Texas.