You could contact the operator of your trip and ask if any of the wrecks present an "overhead environment" versus a "swim-through" and see how they describe it.
Question Yoke Regulator with Wreck Diving
- Thread starter DrMattWill
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Cheizz
Contributor
If it's the Northern Wrecks & Reefs in the Red Sea - I have booked that trip for next September - they only require OWD certification, so I can't imagine anything more than a simple swim-through. Not sure if the OP has the same in mind, of course.
Roughly 99% of the diving population would not understand this question, since at least 99% of the diving population would call a swim-through an overhead environment.
Roughly 99% of the wreck entries (note the careful use of a non-official word) I have made in hundreds of wreck dives, at both NDL and Tech depths, have been swim-throughs, meaning I exited somewhere other than my entry point. Some of them have been pretty long swim-throughs, but in each case I knew the exit (or another similar option) would be there waiting for me.
However, in a cave this would be an illegal traverse, since you did not verify the exit!
Sorry about the delay responding, had to work and wanted to give this the thought it deserves.
I disagree, and feel you are comparing apples to crowbars.
I personally know of a number of people who drowned (not on scuba, however). Countless people on this forum know of numerous documented cases of drowning while on scuba. Also freediving. I have not seen documented or even hearsay of any actual incident of the "knocked a yoke reg off the valve while diving" alleged failure mode.
We don't tell people never swim, scuba or freedive.... despite countless documented drownings. Yet we have plenty of divers calling yokes a terrible idea and don't buy them because of something I haven't ever even heard rumor of happening.
We have, however gone off topic and I will let it lie here. I think, in the interest of further exploring this tangent I may start a new thread/poll.
Respectfully,
James
The longest swim through you can do in a wreck is a fraction of a cave traverse. Note that I said an alternative was also available.
An example would be on an upper deck of the Spiegel grove. You look in a door and see a room with no obstacles, minimal silt, another door across from you, and a huge hole cut in the hull. Your plan is to go through the door on the other side, which may lead to an unverified exit, but you always have that big hole in the hull as an alternative. You cross the room, look through the door, and you see exactly the same thing. You can go the entire length as one long swim through, but you are never more than a few feet from an alternative exit to open water.
I just want to add to my last point in case it wasn't obvious. You are only entering a swim-through if you are certain you have that other exit. If not, you must treat it as needing a potential return to your starting point, and if that is more than a short swim with no silt, you need a line.
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