The “point of no return” (PONR) in held-breath cave diving varies by individual. Nevertheless, the rule of thumb is to make sure your PONR is at least half the length of the cave you are trying out - and that your diving partner is not a lung power monster whose PONR is multiple times longer than your own. :-)
savaster
2024-11-08 12:38:08 +0000 UTCGil Thomas
2024-11-08 10:05:56 +0000 UTCsavaster
2024-11-08 10:04:52 +0000 UTCsavaster
2024-11-08 04:06:09 +0000 UTCTitan1017
2024-11-07 16:44:33 +0000 UTCDidrik Svahn
2024-11-07 14:35:41 +0000 UTCthekill
2024-11-07 14:02:03 +0000 UTCSeawolf
2024-11-07 13:51:42 +0000 UTCSeawolf
2024-11-07 13:51:28 +0000 UTClisenke
2024-11-07 13:23:34 +0000 UTCmelangalade
2024-11-07 13:18:31 +0000 UTCDidrik Svahn
2024-11-07 13:02:31 +0000 UTC