Great. Blue. Hole.
March 29, 2010 3:16 AM Subscribe
posted by bwg (24 comments total)
12 users marked this as a favorite
"Surrounded by darker, deeper ocean waters, coral atolls often glow in vibrant hues of turquoise, teal, peacock blue, or aquamarine. Belize's Lighthouse Reef Atoll fits this description, with its shallow waters covering light-colored coral: the combination of water and pale corals creates varying shades of blue-green. Within this small sea of light colors, however, lies a giant circle of deep blue. Roughly 300 meters (1,000 feet) across and 125 meters (400 feet) deep, the feature is known as the Great Blue Hole
." (Massive NASA image
of the atoll).
"The Great Blue Hole — the world’s largest blue hole
— is ... a small atoll 60 miles (96 kilometers) east of the Belize mainland. The hole is near perfectly circular in shape ..."
Unfortunately high-resolution images are few; this one is so-so
Also, previously at AskMeFi