First, this is the spawn point of the world, which has a bonus chest that has items that will help you to survive.

Like I've said previously, this map will generate only "Mushroom Island" biome, so, all that you'll find will be like this.

And sometimes you'll find grass in few quantities.

Remember that on this biome doesn't spawn monsters or animals, nothing more than the mooshrooms.

For finishing, this map has the achievements enabled, so, you can win achievements on this map.