While you can wear shorts, you must ensure they cover your knees. Trousers or jeans are recommended.
No, you cannot visit the Palma Cathedral wearing flip-flops or even barefoot.
Yes, you can carry a backpack with you to the cathedral. However, large packages and suitcases aren’t allowed, and there are no locker rooms to deposit your luggage, so make sure to plan accordingly.
No, you must remove any hats and headgear when entering the Palma Cathedral.