Can you swim in a sinkhole?
Can you swim in a sinkhole? Oman's Bimmah Sinkhole is considered one of the most beautiful on the planet, and it serves as a swimming hole for local residents and tourists who come to see its azure waters.
How deep is Blue Hole?
The hole is perfectly circular in shape, over 300 meters (1000 ft) across, 3140 feet circumference and 125 meters (410 ft) deep. It was formed as a limestone cave system during the last glacial period when the sea level was 400 to 500 feet below present time and was dry land.