Visitors bring in their sorriest mutts for the World's Ugliest Dog Contest. (Animal Planet was there for last year's competition; www.animal.discovery.com/convergence/ugly_dog/uglydog.html
.) Another big highlight: the Latino Fiesta. General admission includes carnival rides and headline concerts by bands, including Bowling for Soup, SHeDAISY and Cheap Trick
June 20 to 24 at 175 Fairgrounds Drive, Petaluma.
$14, $9 for kids 4 to 12; presale tickets discounted online.
(707) 283-3247, www.sonoma-marinfair.org/