Underwater Building in Minecraft

This post will deal with my method of building things underwater in Minecraft, but it should be noted that I use Creative Mode. I suppose you could also use this method in Survival, but that would require methods of breathing. For this purpose, ladder creates a bubble of air, as do slabs.

So, without further ado, here's the method:

Step 1: Resource Packs

It should be noted that in this, resource packs, or as they used to be called, texture packs, are not essential. I prefer how underwater looks in texture packs as opposed to normal Minecraft. In the image above, the top image is that of the normal Minecraft textures, and the bottom image is that of the 'Dokucraft, the saga continues' texture pack available here.

Step 2: Build a Box

Here i just built an underwater box of materials out of wood and glass. In this step, you should note that you can't place ladder, torches, levers, doors, or beds on glass. This could be a problem, seeing as there's not point building an opaque box underwater, but you just have to make sure that for certain parts there is a wooden floor, as in the above image. Also, instead of torches, you can have glowstone either as part of the wall, floor or ceiling, or even outside the box where it will shine through the glass, as in the above image.

Step 3: Fill it in

A box filled with water isn't much use, so the next step is to break your way in, and fill it in with an easily recognisable block. You will have to break your way out in the end, but you'll just end up with a solid box anyway. Then, you have to go in the proper way (through the ladder down into your underwater building) and break all those filled in blocks, leaving behind a dry box.

Step 4: Fix the Ceiling

See those water droplets? Not ideal at all, are they? Luckily, they are easy to fix. This is because if you have a glass ceiling, there will be not water droplets at all. So, all you have to do for wood or other materials is build a layer of glass on top and your ceiling is fixed.

Movement:

Note that if you break a hole in your floor, as above, you can leave or enter that way without flooding your interior. This is a lot easier than going the proper way each time, especially if you have a very deep complex. 

You should also note that redstone underwater is very difficult, but if you build any redstone above ground first to determine the size of the box you have to encase it in, it can be done. Any spaces, however, will have to be two high so you can walk around.

Final Thoughts:

I hope you enjoyed my first (well, not technically first, but the first one wasn't much) blog post, and I hope it helps you build underwater in Minecraft, because the results can be very cool.