Cape Town - A newly formed sink hole in the Northern Cape on Mount Carmel farm along the R31 between Daniëlskuil and Kuruman has intrigued cavers from around the country - and with good reason.
The cave, which was formed about two weeks ago following heavy downpours in the area, was recently explored for the first time in history, revealing a underworld wonderland.
Videographer Hendrik van Hunks took drone footage of the hole and posted it to Facebook, estimating the fissure appears to be about 300m long.
What lies beneath the surface, however, has been established to be also much larger that what the crack appears from from the outside.
The definition of a sink hole is described as a cavity in the ground, especially in a limestone formation, caused by water erosion and providing a route for surface water to disappear underground - with some ascribing this to soil erosion due to underground waters.
However the region recently received heavy rains that lead to flooding in the area - heavy rainfall and flooding rivers were recorded in the Kalahari Desert region in the Northern Cape, crossing over into Namibia.
WATCH: Northern Cape, Free State, Eastern Cape flood after heavy rain
Road permanently closed
Residents in the Northern Cape town of Kuruman first took to social media to expressing their concerns with the sinkhole that has formed so close to the road.
When a second depression close to the road was recorded last Thursday, 12 January, the road was permanently closed by the Department of Roads & Public Works.
This is drone footage filmed by Hendrik van Hunks of the sink hole that is threatening to swallow the road R31 in South Africa North Cape.