Six Flags Discovery Kingdom vs Six Flags Great Adventure

Six Flags Discovery Kingdom sits in Vallejo, California, on San Francisco Bay's northern edge. The park combines a theme park with a marine-animal section, running coasters like Medusa (the West Coast's first floorless), Kong (an inverted coaster), Superman: Ultimate Flight, Joker 4-D Free Fly Coaster, and the newer DC Stunt Coaster. Dolphin, sea lion and bird shows run throughout the day.

Bay Area weekend visits, California school holidays, and the Fright Fest event drive Discovery Kingdom's peak crowds. Weekdays in April, September and October are dramatically quieter, with queue times on most rides staying short. Check live wait times for Medusa and Superman on arrival, and use our crowd calendar to pick a midweek date for shorter waits. The bayside setting makes for pleasant walking even on quieter days.

Six Flags Great Adventure sits in Jackson, New Jersey, and has long been one of Six Flags' flagship coaster parks. The line-up is exceptional: El Toro (one of the world's top-rated wooden coasters), Nitro, Jersey Devil Coaster, Superman: Ultimate Flight, Batman: The Ride, Skull Mountain, and Green Lantern stand-up. Kingda Ka was the park's signature ride until its closure; a Safari Off Road Adventure drive-through exhibit also operates on the property.

NJ and NYC school holidays, Fright Fest and US summer weekends drive huge crowds. Weekdays in May, September and October are dramatically calmer. Check live queue times for El Toro and Nitro on arrival - they build up fast - and use our crowd calendar to pick a midweek visit for shorter waits across the whole coaster line-up.