victorzamora
Contributor
Lavacore is good, but certainly not 3mm full good. It's too loose if worn on its own. Pants/shirt are equivalent to a 5mm if worn with a 3mm full suit. In fact, that's what I recommend you do if you have that in the budget. Get the Lavacore shirt/pants (or onesie) and take a 3mm full suit as well. I dove a 2mm shorty when I was there in Sept and it was chilly. I'm VERY cold tolerant, and would've liked a 3mm full suit. Another benefit of the full suit is added protection from jellies/coral IF you end up touching one. I try my hardest to not, but sometimes the current/surge puts you too close. A little protection from the abrasion is nice to have. If you get warm, grab your neck seal and open/close it quickly a few times. It'll rush cool water over you and help out a lot. If you get cold, you can add the LC one or both pieces. In the cenote, I recommend the 3mm full suit and both LC pieces.
As for the cavern dive, you're clearly set on doing it so I'm not going to dissuade you. I think a cenote dive is one of the coolest things in the world, and I say that as a Full Cave diver. I took my wife (OW only) with me on a guided cavern dive (two, actually) and she loved it. Actually considered getting Cave training. One thing I will mention is that we spent DOZENS of hours in the pool getting her trim, buoyancy, and frog kick technique where it needed to be. She looks GREAT in the water for an OW diver, and even good compared to some Cavern divers (a couple Full Cave divers I've seen), rescue divers, Divemasters, etc. She's really worked on trim/buoyancy. I will tell you, your trim/buoyancy is NOT good. It might be good for a beginner, but it's not good yet. There's simply no way. It takes dozens or hundreds of hours of doing nothing but working on it to get good. It takes hundreds if not thousands to get really good. I'm Full Cave, Deco, Overhead Deco, Cave stage, etc certified diver (read: I'm pretty good) and I still work hard at it every dive. By all means, enjoy your dive.....but do NOT overestimate your abilities. That's what gets you hurt.
As for the cavern dive, you're clearly set on doing it so I'm not going to dissuade you. I think a cenote dive is one of the coolest things in the world, and I say that as a Full Cave diver. I took my wife (OW only) with me on a guided cavern dive (two, actually) and she loved it. Actually considered getting Cave training. One thing I will mention is that we spent DOZENS of hours in the pool getting her trim, buoyancy, and frog kick technique where it needed to be. She looks GREAT in the water for an OW diver, and even good compared to some Cavern divers (a couple Full Cave divers I've seen), rescue divers, Divemasters, etc. She's really worked on trim/buoyancy. I will tell you, your trim/buoyancy is NOT good. It might be good for a beginner, but it's not good yet. There's simply no way. It takes dozens or hundreds of hours of doing nothing but working on it to get good. It takes hundreds if not thousands to get really good. I'm Full Cave, Deco, Overhead Deco, Cave stage, etc certified diver (read: I'm pretty good) and I still work hard at it every dive. By all means, enjoy your dive.....but do NOT overestimate your abilities. That's what gets you hurt.