There's just something about the contrast of hot and cold that leaves your body invigourated. Greenland might be 80 percent ice, but it's also a secret thermal spring hotspot, as the country is home to a ton of warm thermal pools that provide much-needed reprieve from the frosty Winter air. Lay back and bask in the warm waters while taking in the views of mountain peaks and drifting icebergs. Many of the springs also boast natural healing properties, helping to zap any tired or achy muscles.