https://www.siliconvalley.com/2021/03/05/california-to-allow-outdoor-stadiums-performance-venues-to-reopen-in-april/

Making another move to ease restrictions as virus infections dip and vaccines spread, California will permit large-group outdoor activities to resume at limited capacity next month, allowing baseball parks to welcome fans for the start of the season and performance venues to resume operations.

Starting April 1, outdoor sports stadiums, music and art locales and amusement parks across the state may host guests, some for the first time in a year, according to California Health and Human Services Secretary Dr. Mark Ghaly.