This magnificent dive site is what makes Corfu the cavern diving capital of the world. Hole of Ha is an easy cavern dive that goes inside a mountain. It has no roof, which means when you look upwards, you can see the trees that surround the hole in the mountain. The colors created by the sun hitting and streaming through the water will make this dive memorable. In addition to the fascinating mix of fresh and saltwater, you’ll also see stalactites, and fossilized conch shells in the cave. This is the dive site you definitely have on your list!