130 performances in one afternoon? Sounds overwhelming. But fun! This Sunday, the San Francisco Theater Festival does just that at Yerba Buena Gardens.
Part of the festival includes a Children's Festival, with 30 performances (though details weren't on the website when I wrote this).
A few of the performances which could be fun for kids:
Wicked: some cast members perform starting at 1:00
Beach Blanket Babylon: who doesn't love those big hats? Just after Wicked, stay for a mini-BBB show.
Lamplighters Musical Theater: performs songs from My Fair Lady.
For more on the performances, click here. Each group performs for 15-30 minutes. Expect crowds - last year they drew more than 10,000 spectators.