Six Flags Magic Mountain vs Universal Islands Of Adventure

Six Flags Magic Mountain in Valencia, California, holds the world record for most roller coasters at a single park - currently 20 distinct coasters. Highlights include X2 (a 4-D prototype), Twisted Colossus, Tatsu (a flying coaster), Full Throttle, Superman: Escape from Krypton, Goliath, and Wonder Woman Flight of Courage. The park's hilly footprint gives many rides dramatic terrain-following drops.

Magic Mountain's LA-area weekend visits, US school holidays, Fright Fest and Holiday in the Park events drive peak crowds. Weekdays outside school breaks can be dramatically quieter. Check live queue times for X2 and Twisted Colossus on arrival - they build up fastest - and use our crowd calendar to pick a lower-crowd midweek date if you want to ride all 20 coasters in a single day.

Universal's Islands of Adventure is widely regarded as one of the best theme parks in the world. Its line-up blends record-breaking coasters with detailed themed lands: Hagrid's Magical Creatures Motorbike Adventure, Harry Potter and the Forbidden Journey, VelociCoaster, The Incredible Hulk Coaster, Pteranodon Flyers, and the classic Jurassic Park River Adventure. The Wizarding World's Hogsmeade is the park's most iconic area.

Like its sister Studios park, Islands of Adventure stays busy year-round, with Hagrid's and VelociCoaster consistently posting the longest queues. Peak periods are US school holidays, Halloween Horror Nights and Christmas. Check live wait times immediately on arrival and head to Hagrid's first. Use our crowd calendar to pick the quietest possible date for your trip.