7.. You don’t have to take them off.
MagicBands are waterproof, which is a good thing since there are water rides at Disney and because it often rains in central Florida. If you’re concerned about losing your MagicBand, you can wear it for the duration of your trip—in the parks, outside the parks, in the pool, in the shower, wherever. You can wash your hands while wearing your MagicBand (and please do!) without ruining your band. (Photo credit: WDW Vacation Tips)