Maldives diving tragedy may have been caused by ‘sand wall illusion’ as expert explains

in 2014 by Russian diving expert Vladimir Tochilov, reveal a winding warren with a number of twists, turns, and chambers – with very little natural light and a number of features that could disorient you.

Tochilov told CNN: “This cave is accessible only for technical cave divers who have the appropriate preparation, the appropriate experience and who continue reading …