Fiesta Cinco de Mayo
When, where: May 2 and 3, Old Town State Historic Park.
Highlights: Commemorate the Battle of Puebla with a weekend of music, food, displays and reenactments.
Info: (619) 233-5008, www.fiestacincodemayo.com
International Children's Festival
When, where: May 11 to 18, Vanier Park.
Highlights: The 32nd annual event includes storytelling, music and hands-on activities for the entire family.
Cost: Show tickets $16 (includes site admission). Free for babies 18 months and younger.
Info: (604) 708-5655, www.childrensfestival.ca
ING Bay to Breakers
When, where: May 17, from the Embarcadero through Golden Gate Park.
Highlights: This 12K isn't your average race. People run it in athletic clothes, crazy costumes — and in nothing at all. Cost: Registration from $44 for adults, $39 for children under age 18.
Info: (415) 359-2800, www.ingbaytobreakers.com
Life, Love and the Beyond
When, where: May 17, Grand Sierra Resort.
Highlights: Authors Marianne Williamson, Rabbi Shmuley Boteach and Dannion Brinkley headline a day devoted to greater understanding.
Info: (800) 648-3568, www.grandsierraresort.com/entertainment/events_calendar/details.php?Id=225.
When, where: May 21 to 24, downtown Sonoma (Field of Dreams).
Highlights: Celebrate Memorial Day weekend with musical acts Chris Isaak, Joe Cocker, Lyle Lovett, Ziggy Marley, Big Bad Voodoo Daddy and more.
Cost: From $30 for adults, $15 for children 15 and younger.
Info: (866) 468-8355, www.sonomajazz.org