Yes, all versions of Disney's wearable tech, including the MagicBand 2 and the newer MagicBand+, are completely waterproof and designed for swimming. They are built to withstand the chlorine of resort pools, the salt of the ocean (if you're on a Disney Cruise), and the high-speed water of attractions at Typhoon Lagoon or Blizzard Beach. You can wear them while showering, rafting down the Kali River Rapids, or soaking in a hot tub without any risk to the internal RFID chip or the battery. In fact, Disney encourages keeping them on throughout your stay so you never lose the ability to unlock your room or pay for snacks. The only caution for 2026 is to ensure the MagicBand+ is fully charged before a long day, as while the "waterproofing" holds up, the interactive lights and haptic vibrations can drain the battery, though the basic "tap" functions will still work even if the battery is flat.