I learned to dive in SE Asia where I was taught to let DM's plan and guide our dives. There was a cavern zone at Sipadan, Malaysia Borneo which the DM said was safe. Disregarding my OW training, which explicitly said no overhead diving, we entered and penetrated past the warning sign on budget rental equipment. As our only light source, my very supportive instabuddy and I shared a very weak dive light which barely illuminated the bottom. We did keep the cavern opening in sight but it seemed to recede into the distance.
From what I can recall, the cavern zone of Turtle Cave has a gravel bottom and there are no off-shoot tunnels except in the back. I have no idea how far we penetrated, in reality probably not that far (but deep enough to surpass training limits).
In retrospect I know the main problems were that it was a trust-me dive beyond my training limits with a new to me dive buddy, we passed the warning sign, had no decent lighting or training in overhead procedure, were using questionable rental equipment and the space was packed with divers and chaos.
I remember holding the hand of my partner to make sure he was there if I needed him. I don't think we could have seen each other in the dark or signaled for help to solve the issues if our equipment had failed, which thankfully it didn't.
At the time I knew I was exceeding OW training limits and felt nervous about doing so. I really didn't want to put the advice of the DM above my instructor and training material. However, at 35ish logged dives I had no way to comprehend the actual risks, and caved in to the peer pressure to follow because all the other clients were doing so (which I recognize now to be a recipe for potential disaster).
Having logged about 800 dives and earned full cave and wreck penetration certification since Turtle Cave - I can clearly see the dangers of having wandered into an overhead without training.
If a diver feels the passion/desire/compulsion to move past the limits stamped on their certification card, I highly recommend seeking proper training before launching the new adventure,
Some wise diver once said: "If you have the feeling underwater - I really shouldn't be doing this - then you probably shouldn't
"
From what I can recall, the cavern zone of Turtle Cave has a gravel bottom and there are no off-shoot tunnels except in the back. I have no idea how far we penetrated, in reality probably not that far (but deep enough to surpass training limits).
In retrospect I know the main problems were that it was a trust-me dive beyond my training limits with a new to me dive buddy, we passed the warning sign, had no decent lighting or training in overhead procedure, were using questionable rental equipment and the space was packed with divers and chaos.
I remember holding the hand of my partner to make sure he was there if I needed him. I don't think we could have seen each other in the dark or signaled for help to solve the issues if our equipment had failed, which thankfully it didn't.
At the time I knew I was exceeding OW training limits and felt nervous about doing so. I really didn't want to put the advice of the DM above my instructor and training material. However, at 35ish logged dives I had no way to comprehend the actual risks, and caved in to the peer pressure to follow because all the other clients were doing so (which I recognize now to be a recipe for potential disaster).
Having logged about 800 dives and earned full cave and wreck penetration certification since Turtle Cave - I can clearly see the dangers of having wandered into an overhead without training.
If a diver feels the passion/desire/compulsion to move past the limits stamped on their certification card, I highly recommend seeking proper training before launching the new adventure,
Some wise diver once said: "If you have the feeling underwater - I really shouldn't be doing this - then you probably shouldn't

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