The Sinkhole

A Gateway to the Underworld 

A sinkhole anywhere is dangerous; there are many small ones in the UK. The UK sinkholes are usually to be found in and around areas concerned with mining, as few documents list old shafts.

In central, and South America they are known as cenote, meaning gateway to the Underworld. 

While this looks beautiful, you must realise the hold is held in place by a series of rock ledges, nature is beautiful, but this is dangerous too. This is not the largest, there is one in a southern USA state which is five  NFL wide, and growing.

Even that pales in comparison to the one found in Russia; scientists have no idea how deep it is. The usual way to find depth is to drop something neutral like a stone in the hole; not these people, they dropped a flare down the hole, which turned out to be a pit of Sulphur. The flames are so hot they can be seen from space, and you thought  Centralia, Pennsylvania was bad.