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

Oddenino, and instructor Gianluca Benedetti, have now been recovered by teams of expert divers.

But what exactly caused the group, which had a couple of experienced divers alongside less experienced ones being led by an instructor, to perish deep in a cave network almost 200ft under the ocean’s surface is unclear.

Experts have spent the last week poring continue reading …