One of favourite attractions in the Margaret River wine region are the caves. Many people that visit the region regularly are not aware of the sheer number and size of these incredible structures found below the whole region. Today’s Picture of the Day shows the Mammoth Cave doline. Wikipedia describes a dolineas:
A doline, also known as a sink, snake hole, swallow hole, swallet, sinkhole or cenote, is a natural depression or hole in the Earth’s surface caused by karst processes — the chemical dissolution of carbonate rocks or suffosion processes for example in sandstone.
Book your cave discovery pass with www.margaretriver.com