Dog Friendly HotelHotel und Restaurant Glück Auf is the “Good Luck” Hotel with its own watchdog, Max. Guests can bring their own dog to play with Max at no extra charge. The hotel provides dog sitters, dog walkers, and special dog food. Dogs must have proof of vaccination and stay kenneled at all times in the hotel. Being in the Harz mountain range, Glück Auf has plenty of adventure and excitement waiting for you and your furry friend.