This tiny speck of a country packs a big punch. What it lacks in size, it more than makes up for in beauty. Few countries in the world, with the possible exception of Iceland, offer such weird landscapes – think salt lakes, extinct volcanoes, sunken plains, limestone chimneys belching out puffs of steam, basaltic plateaus and majestic canyons. Outdoorsy types will enjoy a good mix of land and water activities, including hiking, diving and whale-shark spotting in the Gulf of Tadjoura.