As of this past weekend, the cyclocross season is in full swing and there are lots of opportunities coming up to get out and race. You can use a cyclocross, gravel, or mountain bike, and there are lots of age based categories for beginners as well as experienced people.
The Bay Area Super Prestige is one series and the next races are in Santa Cruz on October 30-31. These are very fun with costume races, lots of Halloween decorations, and fun for the whole family.
The other series is based around the Sacramento area and the first race is this Saturday October 2 in Folsom.
Please let me know if you have any questions about cyclocross!