For such a small country--and one with a less than enticing name--Iceland sure has its fair share of must-see natural phenomena. If you've already soaked up the steamy minerals of the Blue Lagoon, head southeast to Skaftafell, a preservation area that has been incorporated into Vatnajokull National Park, largely for its jaw-dropping glacial contents, which are highlighted by the Crystal Cave of Svmnafellsjvkull.