Australian yachtswoman Shannon Lenz has published a video on YouTube showing how her yacht at Vava'u near Tonga runs into a huge field of stones floating on the surface of the sea. Scientists assume that this is pumice stone that has been washed to the surface as a result of an undersea volcanic eruption. The chunks are currently floating there as a closed stone field.
The sailors report that they sailed through the stones for around seven hours. The carpet was so dense that they could not see any water for hours. The dimensions can be seen on satellite images; according to these, the stone desert is almost 100 square kilometres in size. The individual pieces of pumice range in size from a marble to a football.
Sailors get caught in a gigantic pumice stone field near Vava'u
The sailors were lucky during the journey through the rocks; their yacht was only slightly damaged. However, the rudder was blocked by the boulders for some time, so that they were temporarily unable to manoeuvre.

Editor YACHT