So whats the plan with it? You just digging down, making an ocean town? What you should do is a bunch of underwater domes, and glass biospheres. It wouldnt be hard, you'd have the sand already. I did the same thing, but much smaller scale.
(that homes built under water)
upload photo
(that homes built under water)
![[Image: 2016_08_05_09_04_52.png]](https://s32.postimg.org/wzns5hft1/2016_08_05_09_04_52.png)
![[Image: create.png]](https://s31.postimg.org/rsfx0d6wb/create.png)