The South Coast of Iceland is one of the best vacation destinations for nature-loving families. It works well for a road trip — one day you might hike amid lush waterfalls; the next, on barren lava fields. This variety makes the region work in a kid-friendly way. A Zodiac boat tour to spot puffins is a hit with children, as is running around on the black sand beaches. Our favorite hotel in this region has a telescope perfect for trying to catch the Northern Lights and a kid-friendly stargazing program with a local astronomer.