Tall task. I think there's 33.8oz or so in a liter (memorized that off a 1-liter bottle of soda as a kid, yes I'm a savants) so that's about 60-65 lbs of floatation. Considering the only things in your body that won't float are your muscles and some organs surrounded by muscles, the roughly 30L of board volume has got you covered by far. Im guessing you're a white female and your population has the lowest bone density so your bones may even float. Even with unreal technique, I'd think you'd be better off using a roll to get through waves. Depending on your location, there aren't likely any waves to duck dive through so you're at least set for a few more days of flatness during which the more knowledgeable board members can give you better answers!
Technique is everything. A board's volume isn't distributed evenly throughout. If you have nearly 30 liters you can make a logical assumption that there isn't even 1/2 of that at the nose. Throw yourself up to the nose, do a handstand on it and it'll go under.
^^^ This, except i'd add that you should grab the rails up by the nose while doing the hand stand but stab the board into the bottom of the wave face with as much force as you can by extending your arms as far as you can as you do that hand stand, if you can, get a foot on the tail and push with your leg to get the tail of the board under the whitewater more too, nose first tail second, then hold on and come up paddling immediately to avoid losing too much ground. Timing is everything, make sure you get under the wave before it breaks on you.
Don't forget about the crucial second half of the maneuver. You really have to jam the tail down in order to pivot the board so the nose is pointing up. For a small person or a big board, this requires stomping with your foot and not just nudging with your knee. Once the nose is pointing up, you're golden because buoyancy does all the work after that. If you fail to pivot the board, buoyancy will work against you, and instead the tail will take the lead and try to shoot the board (and you) behind you. I can't speak from experience of whether physics will let someone so light pull this off but the only way to find out is to try and keep practicing.
probably difficult, at least...but depends on the board. If it's a full on hpsb, the amount of foam in the chest/nose area is going to be minimal and, therefore, easier to push under. A fish/groveler is going to be the opposite.
It's more of a small wave board, i'll mostely be surfing 1-4 foot waves, then occasional 5 or 6. Those 4 to 6 foot waves screw me.
I am 145 pounds and can duck dive my 7' 6" funboard and its 3" thick, it move of slicing the nose into the wave and basically standing on the tail once my nose is under
its possible.. Bethany Hamilton has one arm and duckdives overhead waves all day. granted, it's a little different, but it shows you that if you're disciplined, committed, and practice, anything is possible.
