With over 70 per cent of the Earth’s surface covered in water and billions of years of world history, it’s no wonder that our planet’s oceans, seas and lakes hold some of the most fascinating attractions (both natural and man-made) that can be found on the planet. For those looking to flex their adventure muscles and temporarily leave behind the security of solid ground, here are 6 human contributions so fascinating, they’re worth taking the plunge for:
6. Yonaguni Monument, Okinawa
Found off the coast of Yonaguni, the southernmost of Japan’s Ryukyu Islands, not much has been confirmed about the origins of the enormous rock formation. Containing step-like features, scientists dispute whether the “monument” is natural or man-made, and several theories have cropped up encompassing everything from monolithic construction to government conspiracy. Nevertheless, the site remains a popular destination for divers, providing a unique opportunity to stand on a massive underwater structure and witness an abundance of marine life brought on by the strong Yonaguni current.