Marine World/Africa USA
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Marine World/Africa USA was an animal theme park located in the Redwood Shores area of Redwood City, California. The park was named Marine World when it first opened in 1968, before merging with a lan
Orca show at Marine World in 1970
1984 ticket for Marine World Africa USA
Six Flags Discovery Kingdom
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Six Flags Discovery Kingdom is a 135-acre animal theme park located in Vallejo, California, off of Interstate 80 between San Francisco and Sacramento. The park includes a variety of roller coasters an
Marine World/Africa USA
…in 1968, before merging with a land-animal park called Africa USA in 1972. In 1986, the park relocated to Vallejo, California, and is now known as Six Flags Discovery Kingdom. There were two successive Africa U.S.A. parks in California, both associated with animal trainer Ralph Helfer. The first Africa U.S.A. in California…
Logo used since 2025
SkyScreamer and Medusa in 2023
People walking at Six Flags in Vallejo