The Great Barrier Reef has just gotten even cooler thanks to a fresh discovery. Marine biologist Johnny Gaskell discovered an incredible “Blue Hole” in the heart of the Great Barrier Reef when searching on Google Maps. “A blue hole is an underwater sinkhole formed by the erosion of carbonate rocks and appears as a dark blue circle of water in the ocean,” explained Amusing Planet . “Owing to their depth, blue holes appear darkish blue because of greater absorption of sunlight which increases with increase in depth. We may very well be the first to ever dive Gaskell’s Blue Hole as it was so far offshore and hidden deep within one of the Great Barrier Reef’s biggest lagoons.”This story originally appeared in news.com.au.

Source: Fox News September 28, 2017 09:33 UTC