The only one that's ever been an issue for me is Indy Jones. There is space to stow a bag in front of you (mesh pouch), but it's not large, so a full backpack might not fit. Likewise, the side of the ride car is open, so if you put the bag at your feet, make sure to put it on the inner side!![]()
Right above the mesh pouch, there's a metal "hook" that you can hang your backpack on. That's always worked well for me.