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OK, as far as the question regarding wreck penetration without a line....
First, keep in mind that what we do is very likely NOT what you should do. Our techniques apply in a specific environment with specific levels of training and experience. What works for us may very well KILL YOU.
We do quite a bit of penetration without lines. Most of these involve artificial reef wrecks, wrecks with multiple entry and exit points and without a large amount of hanging debris on the ceiling. Those that are not artificials are wrecks that we are very familiar with.
Our water is warm, and generally clear not dark, cold, and murky. The people that do this are very experienced and are good at moving without kicking up the bottom. Sometimes we even take scooters inside. Depending on the wreck they can be a useful tool to help avoid kicking up the silt. They can also stir things up completely in a split second if you screw up.
The technique called "progressive penetration" involves very slow progress over a number of dives. Perhaps this would work if one had the wreck in their backyard but it takes a large number of dives to get very far inside doing it properly. Even so, a siltout is still very bad news without a line.
My recommended practice is to use a guideline at ANY time you are in an overhead environment. I do not recommend progressive penetration techniques but I realize that some very experienced and good divers use them.
WW
First, keep in mind that what we do is very likely NOT what you should do. Our techniques apply in a specific environment with specific levels of training and experience. What works for us may very well KILL YOU.
We do quite a bit of penetration without lines. Most of these involve artificial reef wrecks, wrecks with multiple entry and exit points and without a large amount of hanging debris on the ceiling. Those that are not artificials are wrecks that we are very familiar with.
Our water is warm, and generally clear not dark, cold, and murky. The people that do this are very experienced and are good at moving without kicking up the bottom. Sometimes we even take scooters inside. Depending on the wreck they can be a useful tool to help avoid kicking up the silt. They can also stir things up completely in a split second if you screw up.
The technique called "progressive penetration" involves very slow progress over a number of dives. Perhaps this would work if one had the wreck in their backyard but it takes a large number of dives to get very far inside doing it properly. Even so, a siltout is still very bad news without a line.
My recommended practice is to use a guideline at ANY time you are in an overhead environment. I do not recommend progressive penetration techniques but I realize that some very experienced and good divers use them.
WW
