SHARE Inside the world's first ice hotel as it reopens for winter: frozen hot dogs, a sub-zero sauna and a giant Maltese dog See the dazzling ice architecture inside Sweden's Icehotel's annual icy redesign Icehotel 31 is open for overnight stays. Art suites and rooms are carved out of snow and ice. All photos courtesy Asaf Kliger / Icehotel unless otherwise mentioned Every year, ice from the Torne River is used to build a new, seasonal Icehotel. The ice melts in spring and returns back to its origin. Guests sleep on reindeer hides and are advised to spend only one or two night 'on ice'.