Dive 2 is a wreck dive, but the kind you swim around and look at, not the kind you go into. Only issue - it's at 100'. I am (I believe) certified to 60' with my OW, and have not gone below 52' before.
AOW is not a magical bullet. It is more a presentation of courses available.
What is relevant though is experience.
Dive, dive, dive.
100' is not that much... but you do need to be mentally prepared for it. A dozen dives is not a lot, but if the environment is benign and you feel safe, then 100ft is not that bad. Make sure that the basic skills (emptying a mask, switching a reg, sharing gas, emergecy ascent, buoyancy control) are familiar to you.
When he showed me pictures of Dive 3, it looked like an overhead environment to me. I expressed that and he replied that it wasn't a "real" one, because there were openings in the ceiling that led to open water, and that you can see the entrance and exit to the space the whole time you're inside.
An overhead environment is another matter completely. There may be openings in the ceiling, but your mental preparedness needs to be on an adequate level to use those would **** hit then fan.
I expressed that I was not comfortable with Dives 2 and 3. The one thing they hammered into my head over and over again during my certification was to only dive within your skill and comfort level (of course "never enter an overhead environment until you've been trained" was a big one too).
That is very wise. Skill and comfort level are very important. Many accidents begin with minor issues that escalate as a result of stress and/or panic. The snowball effect. Please note: that is different from certification level. Real Experience DOES matter.
I am sure that the dives are not very demanding, but if they make you feel uneasy, then there is a slight risk involved.
Given that I'm only OW, and have like a dozen dives under my belt, I do not feel that these dives are within my skill *or* comfort level. I'm happy to do three dives total (plus a refresher, which we're both doing), just not those two in particular.
Can you stay at a slightly shallower depth? Like 15 feet above?
Trust your feelings, though. It is really important.
His response is that this is how you become a better diver
Yeah, true, but it also takes time. Mental preparedness is important.
You should challenge yourself though.
But not by too much.
He himself only has OW, but has done dives of up to 120'
Which is fine, given enough experience and thought.
and has done some cave dives ("really safe" ones, in his words).
"Cave" means different things to different people.
I have seen OW divers do safe ice dives (hard ceiling). Not a problem if distance & depth are controlled and there is a line tender. Similarly "cave" dives could be safe, with many caveats though. BUT the devil is in the detail.
He says the classes and certifications are great, but the best way to gain experience is to just go out and do it.
Totally correct.
There are OW divers with 10 dives and there are OW (not AOW) divers with 100 dives. And there is a difference, and it is in your head, not on your card.
He thinks I'm just nervous because it's been a couple of years, and that once I'm done with my refresher dive and Dive 1, I'll want to do Dives 2 and 3 too.
It's possible he's right.
He also mentioned that for both of these dives, the only certification that the shop requires is OW.
The shop might know more than you do.
Some cavern dives are really really easy.
It is not guaranteed though, that you will FEEL safe.
Please remember that you can always abort a dive.