Lake Myvatn is one of the best reasons to venture to the far north of Iceland. The Earth steams at Hverir and Krafla—a bathing facility that rivals the Blue Lagoon—while seemingly impossible lava formations rise up at Dimmuborgir. Literally meaning “fly water," the lake bursts to life when spring gives way to summer, and millions of speck-sized (and harmless) bugs buzz around. Fortunately, the clouds of insects quickly dissipate, offering months of brilliant hiking through the area’s so-called pseudocrates—pock-like volcanic mounds. Don't miss a dip at the Myvatn Nature Baths: deep blue pools of rich, mineral-filled water.