He pointed out: “The Blue Hole is made of a complex system of caves that once formed on dry land. It is proof of how oceans can rise quickly and catastrophically. “Sea levels were once ...
Plunge into this deep blue ... Blue Hole remains one of the world's most distinguished scuba sites. Created during the last glacial period approximately 10,000 years ago after a cave roof crumbled ...
Other famous examples of these types of blue holes are the Great Blue Hole in Belize, Dean's Blue Hole in the Bahamas and the ...
Located within the 12-acre Walsingham Nature Reserve, Blue Hole Park boasts caves and grottoes with natural pools and stalactite formations all connected by a network of underground tunnels.