This article about Harrison Okene whose boat sank is interesting in terms of surviving in an air bubble underwater (and seems somewhat analogous to the cave sit

This article about Harrison Okene whose boat sank is interesting in terms of surviving in an air bubble underwater (and seems somewhat analogous to the cave situation). http://www.slate.com/articles/health_and_science/science/2013/06/harrison_okene_s_shipwreck_air_bubble_how_could_he_survive_underwater_for.html?via=gdpr-consent http://www.slate.com/articles/health_and_science/science/201...