NO MATTER HOW FEW DIVERS THERE ARE, kit always expands, breeds and spreads to fill the available space. I must admit to being one of the guilty parties.
Given the occasional luxury of just a buddy and myself on a boat licensed for 12, we still manage to spread over an enormous amount of deck space.
Yet when a boat has a full load of divers, somehow we all manage to fit in.
With divers carting growing amounts of technical kit, a fair bit of credit must be due to the skippers who are running larger and larger boats to make room for us all.
But even with larger boats, things run more smoothly if we all follow a few simple guidelines that experienced divers take for granted.

1. Follow the system
It may be the skippers, the dive centres or the dive guides, but every boat has a system. The corollary of this is that every boat has a different system.
It may be unlike your system to which you are accustomed, but by following a single system at least everyone will know whats supposed to be happening.
Its like driving a car on the left or the right. It works best when we all do the same thing.
In reality, its never quite that simple. In my case, I find that occasionally the way cylinders are stored is not compatible with my rebreather, and occasionally the system is not as protective of my camera as I would like it to be.
Whatever the glitch, the way round it is to discuss the problem with the skipper or dive guide and together come to a solution. The easiest way to create chaos is to act unilaterally.

2. Pack your kit in an appropriate way for the boat
Crates are a great way of storing dive kit, especially in the back of a car where they stop salty water from soaking into the carpet, but should they be allowed on boats
Some boats are obviously set up with crates in mind, with space for each diver to store a crate under his or her spot on the kitting-up bench.
But if a boat is not set up that way, finding somewhere to put all the crates soon gets out of hand, with stacks of crates getting in everyones way.
In most circumstances, I leave the crates in the boot of my car and transfer all the loose bits to a mesh bag. The bags currently given away with a DIVER subscription are ideal for holding all the odd bits of kit in both hardboats and RIBs.
Yet at least most crates are stackable. It gets even worse with the big blue plastic fish barrels in which some divers like to store their kit. Imagine trying to find room for 12 of those on the deck of the average hardboat. And whatever you do, dont try to take one on a RIB!

3. Pick your spot and stick to it
It may seem obvious, but its not unusual to encounter divers who have their cylinder and BC on the bench, then spread everything else between two bags at opposite ends of the deck and leave their dive computer and some other small bits spread about the cabin.
Its time to kit up. On goes the weight belt. On goes the BC. Then they either hassle everyone else to pass this, pass that, and pass the other, or wander about the deck getting in the way as they complete various stages of kitting up wherever the kit was left.
If one diver on a boat is that sloppy, its a nuisance. If every diver on the boat is that disorganised, its chaos.
So pick your spot, stow your kit properly, and keep it all in one place. When you come back from the dive, get the kit sorted and stowed at your spot ready for the next dive.

4. Secure all kit
If its big enough to fall over or roll and damage something, it needs to be tied in. The obvious item of kit here is gas cylinders. Loops of bungee cord can be just about sufficient for small single cylinders, but for larger and heavier sets, some lengths of rope or straps make more sense. Even then, for best results you need to be able to tie a decent knot.

5. If its down, it cant fall any further
Some kit is just not practical to tie in, so anything that cant be secured easily and could be damaged by falling is best left on the deck. If its already down, it cant fall any further.
Its a rule I religiously apply to my camera. I cringe when passing it onto a boat and someone stashes it somewhere ÒsafeÓ, like on top of a table. My camera falling off a table could ruin my day and worse, so I prefer to keep it on the floor where it can fall no further.
While I have gone on about my camera, the same rule applies to other kit such as cylinders. If it cant be secured upright, laying it on the floor and wedging it in means that it cant fall over later.

6. If its on the floor, someone will kick it
So having put my camera on the floor, whats to stop someone kicking it If there is space on the boat, I take a crate just large enough for my camera. It sits on the floor and provides good protection. Where there isnt space for the camera crate, I look for a corner in which to stand my camera, and kitting-up space next to it or above it. That way, its only me who might kick it.

7. Doorways are great for changing
Given pleasant conditions, the deck of a boat can remain dry, but only up to the first dive, after which divers bring wet kit back on board. More realistically, in anything but the calmest conditions the deck of a dive boat is wet.
Come time to put a drysuit on, we all want to keep its inside and our undersuit as dry as possible, yet the outside of the suit could easily be soaking.
My favourite spot for changing into a drysuit is the cabin doorway. On a rolling boat, there is a doorframe to stop me falling over. I can step from a dry inside into a wet outside without mixing dry and wet.
Of course, while doing this the doorway is effectively blocked, and there is only space for one at a time, so it takes planning and co-operation if everyone wants to do it.
Get everything ready and to hand, step from shoes inside the door to drysuit outside it, then get out of the way so that the next diver can do it.
And dont even think of blocking the door while the skipper is bustling from inside to outside to drop the shot.

8. Do your buddy check before putting your kit on
The first pair of divers are by the jump point, waiting for the skipper to line up by the shot. Thats when they begin a long and ponderous buddy check, which ends with the colour of the
buckles on their ankle weights.
For serious boat diving, the best time to do a buddy check is before you put your kit on. You can easily check through and show your buddy how everything works and fits together while you both look at it, all without having to twist round with full kit on or balance while standing up on a moving deck.
Later, when kitted up, all that is left is to check that the air is on and working and that buckles are secure.

9. Sit down to kit up
I have already given this advice for stowing kit: ÒIf its already down, it cant fall any furtherÓ.
The same applies to divers, especially when kitting up. If you are already sat down, you cant fall over.
First, organise everything so that you dont need to wander about the boat while kitting up, as noted above in ÒPick your spot and stick to itÓ.
Then sit down and put it all on, though I would make an exception for fins, which it can be safer to leave putting on until you are closer to the exit point. When a boat doesnt have a suitable bench on which to sit, sit on the floor. Then let someone help you get the difficult bits on, and stand up only when its necessary to jump in.

10. Dont all rush at once
On most dive boats and most dive sites, there just isnt space or need for everyone to jump into the water at exactly the same time. Spreading the start of the dive over five to 10 minutes as pairs of divers are dropped on the shotline is much more common.
When we dont all need to jump in at the same time, there is no need for everyone to be kitting up at the same time.
So give the first couple of buddy pairs a bit of space and assistance to get ready, then, while they are waiting to jump, there is a bit more room to get everyone else ready. Leave an experienced pair until last, and they can help all those in the middle batch.
Which means that there is plenty of assistance for all but the last pair, who then have elbow room to look after themselves with the assistance of the crew.

Divernet

A
A boat with a practical system for securing cylinders is half the battle
Tie
Tie everything movable down or stow it where its safe
Commandeer
Commandeer a doorway for changing into a drysuit.
Get
Get organised so that you dont need to wander while kitting up