Hot Nest Norway: The World’s Most Extraordinary Geothermal Spa Resort is Taking Shape Inside a Mountain By:  Robert Buluma Deep in the dramatic Gudbrandsdalen valley in Otta, Norway, something truly groundbreaking (literally) is happening. A former slate quarry is being transformed into Hot Nest Norway – a year-round luxury destination carved directly into the bedrock of the mountain, powered entirely by deep geothermal energy. This isn’t just another spa. It’s a visionary fusion of raw Norwegian nature, cutting-edge renewable energy, and jaw-dropping architecture that looks like it was designed by a collaboration between Tolkien and Tesla. What is Hot Nest Norway? Imagine walking into a mountain and discovering 3,000 m² of luxurious spaces:   20 uniquely designed hotel rooms   700 m² of geothermal-heated indoor and outdoor pools (yes, outdoor pools in the Norwegian winter – steaming at +38 °C while snow falls around you)   A fine-dining restaurant cel...