Six Flags Discovery Kingdom
| Previously known as Marine World (1968–1970s) Marine World Africa USA (1970s–1997) The New Marine World Theme Park (1998) Six Flags Marine World (1999–2006) | |
| Location | Vallejo, California, U.S. |
|---|---|
| Coordinates | 38°8′16″N 122°13′48″W / 38.13778°N 122.23000°W |
| Status | Operating |
| Opened | February 28, 1968 |
| Owner | Six Flags |
| Slogan | The Thrill Capital of Northern California |
| Operating season | Year round |
| Area | 135 acres (55 ha) |
| Attractions | |
| Total | 40 |
| Roller coasters | 10 |
| Water rides | 3 |
| Website | Official website |
Six Flags Discovery Kingdom (formerly known as Six Flags Marine World, Marine World, The New Marine World Theme Park, and Marine World Africa USA) is a 135-acre (55 ha) animal theme park located in Vallejo, California, off of Interstate 80 between San Francisco and Sacramento. The park includes a variety of roller coasters and other amusement rides. Six Flags Discovery Kingdom has been part of the Six Flags chain of amusement parks since 1999.