Boo 2020

Boo 2020

Halloween meets The Marine World Experience for a limited time. Enjoy Halloween activities & thrilling animal encounters.

Wildlife Thrills & Halloween Fun

Six Flags Discovery Kingdom is getting in the Halloween spirit with a monster mash up that combines the Marine World Experience with themed activities for the entire family in a safe environment at BOO 2020!

Mark your calendars and make your reservations for the most wickedly fun times of the year!

BOO 2020! takes place October 24 & 25 from 11am-5pm and October 31 & November 1 from 11am-6pm .

BOO 2020! Reservations & Tickets

Purchase tickets online for just $21.99

More information:




Date(s) - Sun, Nov 1, 2020
11:00 am to 4:00 pm


Six Flags Discovery Kingdom
1001 Fairgrounds Drive,, Vallejo


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