Six Flags Discovery Kingdom

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, roughly halfway between San Francisco and Sacramento on Interstate 80. The park includes a variety of roller coasters and other amusement rides. Discovery Kingdom has been part of the Six Flags chain of amusement parks since 1999.

Upcharge attractions

 * Skycoaster – Riders are harnessed to two long cables and hoisted 100 ft above the park. The riders must pull a ripcord and drop within 6 ft of the ground before swinging back and forth for a few minutes. Prices range from $35 for a single rider, $40 for a double (two fliers), and $45 for a triple (three fliers).
 * TRS: Thunder Road Speedway – A high-speed go cart track near The Joker. Ride duration is 7 minutes.
 * Rockwall Climbing Challenge – Riders climb a 45 ft rock wall.

Animal attractions

 * Shark Experience – Guest gets to go "underwater" with sharks as they travel on a moving walkway through an underwater tunnel showing various sharks. Species on display include sandbar sharks, blacktip reef sharks, zebra sharks, and nurse sharks.
 * Jocko's Walrus Experience – Guest can get face to face with the park's two walruses. Walrus training sessions may also be scheduled throughout the day. Featured in the film 50 First Dates.
 * Stingray Bay – Located in Ocean Discovery, guests can touch live southern stingrays.
 * Penguin Passage – Located in Ocean Discovery, guests can come face to face with African penguins.
 * Seal Cove – Also Located in Ocean Discovery guests can feed California sea lions and Pacific harbor seals. reopened in mid-year 2016 after renovations
 * Alligator Isle – An exhibit featuring American alligators..
 * Butterfly Garden – Guests enter a large, glass-enclosed butterfly garden filled with exotic butterflies.
 * Tava's Elephant Trails – Asian elephants program.
 * Cougar Rocks – Guests can get up close to the park's four cougars.
 * Odin's Tiger Island – Home of the park's endangered Bengal and Amur tigers.
 * Giraffe Encounter – Guests can get up close and feed the giraffes.
 * Lion's Den – African lion exhibit.
 * Dolphin Harbor – Educational dolphin demonstration presentation.
 * Sea Lion Stadium – Located in Ocean Discovery, home of the park's California sea lion, Pacific harbor seal, and[Asian small-clawed otter show.
 * Toyota Stadium - The park's main dolphin show venue; guests can also get up close to the bottlenose dolphins at the viewing windows behind the stadium. Toyota is the sponsor of this display.
 * Odin's Temple of the Tiger – Home to the new Odin's Temple of the Tiger Show, a large amphitheater for guests to view the new show. A small exhibit for viewing the tigers is located outside the stadium.
 * Animal Nursery – Home to baby animals and animals with special needs.
 * Reptile Discovery - Located in Tava's Jungleland, guest can view various reptile species.