You are listing issues that reference the lack of basic skills required for OW certification. These divers should be screened and not allowed in there, end of story! Most of these divers are once a year vacation divers, go scare the fish in Cozumel instead.....or, get the basic training that allows you to control your buoyancy at least, is that too much to ask?
On this point I will have to respectfully disagree with you. In general, what I am describing is a diver in a new environment that - due to anxiety, or nerves, or excitement - just stops thinking. Or in some cases chooses to disregard their instructions. As divepro says, they ARE screened, to the extent they can be. And the number of dives in your logbook (or the title on your c-card) says absolutely nothing about how you are going to perform your first time in a new environment, and also says nothing about what attitude you are going to bring to the dive.
I don't think we can expect the Mexicans to enforce this issue, due to the almighty dollar, so maybe we can do our best as divers to save the Cenotes.
"The Mexicans". are the ones who have put a guide certification system in place, and "The Mexicans" are the people allowing you onto their private land to gain access to the systems in the first place. Many of "the Mexicans" (not to belabour the point) are just as interested as you in conservation and preservation of the cenotes, whether the motivation be environmental concern, future income, or protection of the peninsula's water supply.
Well I can tell you that US MEXICANS, and in most dive shops I know in Cancun and Playa del Carmen, we do check on divers skills, at least have them do an ocean non deep dive first if they have not dove in a while, and Cavern guides wich are generally experienced Instructors (FULL CAVE DIVERS) do provide briefings that cover this issues, unfortunately we get many divers saying and even proving hundreds of dives that do not pay attention to briefings, and at least in our shop we do prefer to recommend not diving overhead environment if there is lack of experience, we also offer bouyancy clinics, Cavern private courses etc. We Mexicans like to keep the cavern system as it is so we can keep getting the almighty dollar from the grandsons of todays divers. Also OW certification skills are one thing but CaverN diving skills or overhead environment diving are a whole different deal it is hard to screen every single diver before a Cenote dive so we provide all the facts and issues about it.
CAVEWOMANS POST IS GREAT. ALL I COULD ADD IS ....PAY ATTENTION TO BRIEFINGS, POSTIONS ETC.
Thanks, dive pro - I think you can distill all of my rantings down into one simple instruction -
pay attention, and think. I see the same thing as you - the overwhelming majority of shops have minimum requirements to do the cenote tours. As you obviously know, the credentials don't say a thing about how the diver is going perform when they get in the cavern.
I think that "you Mexicans" have done a pretty good job of coming up with a sort of industry self-regulating approach to the tours. My opinion is that the APSA guidelines provide for a reasonable safety margin, while still accommodating tourism, and the common practice of keeping to two primary dive sites with new divers at least contains the inevitable damage.
To be very clear, I am absolutely pro-cenote tour. Without the income generated by it, we wouldn't have the access and facilities we have at the sites, and the choice of world-class training that we do.
And if I hadn't been talked into going on one a few years ago (and it took some convincing, believe me!) I wouldn't be a cave diver today.