The Underwater Waterfall of Mauritius Island: Mauritius Island is located in the Indian Ocean east of Madagascar. The waterfall is an optical illusion created by sand washed into patterns that make it appear as an underwater waterfall.
Devil Spring - one of seven springs that are located in the private Ginnie Springs park (northern Florida), a cave divers paradise. For non-divers there is still plenty to see when snorkelling. The intense blue colour is due to the water depth at the cave