You will spawn in a weird place. After crossing the plain biome, you will find many mountains and other interesting terrains such as lava falls and an epic mushroom.
How does Epic Overhangs, Lavafalls & Floating Islands Seed work?
Because the name of this seed is quite long, you need to check it out at the end of this post.
Here is a lava pool. There are 2 floating islands if you walk ahead a little bit.
There are big mountains that established in the water.
Look at a part of this mountain. It comes with bursting lava from the core.
Seed: THE LEGO MOVIE IS AWESOME