For most attractions at Universal Studios and Islands of Adventure in 2026, you must store your backpack in complimentary ride lockers provided at the entrance of the queue. These lockers are free for the duration of the ride's current wait time plus a generous "cushion" for the ride itself. Standard lockers are large enough for a typical school-sized backpack, while "large" lockers are available for a small fee for oversized items. On high-intensity rides like VelociCoaster, The Incredible Hulk Coaster, and Hollywood Rip Ride Rockit, you are not permitted to take any loose articles, including items in your pockets; you must pass through a metal detector to ensure everything is stored. Conversely, on "milder" or water-based rides like The Amazing Adventures of Spider-Man or Jurassic Park River Adventure, you are usually allowed to take your bag on the vehicle and store it at your feet or in a provided floor pouch. If you are worried about your bag getting wet on the flume rides, it is best to use a locker or a waterproof "dry bag."