This Seed is one of the most useful for your Minecraft PE. With its help, you can build incredible structures on the flat land of the world. The flat world in survival mode pretty rare thing. It is possible to test different mechanisms or to improve and optimize the house so that they could live comfortably. And that's not the whole list of possibilities. For example You can build a theme Park or even 3D art. The size of the canvas is large to build enough for a lot of things.
Seed is for MCPE 0.15.10
You will spawning in the water:
To get to the places, we need to go up and sail to the left:
There You will find a super flat clearing: