

In this recent tweet, we can see the first released image of a game-generated river! It's a safe bet at the moment that it will face similar height restrictions as default water generation, but that may change in time - after all, we already have legitimately generated waterfalls!
We will keep you posted as more information about rivers is released.
It is a giant Mushroom
That red thing in the bottom center is a Giant red mushroom, find the other two in the photo :tongue.gif:
If you don't mean that I can't see anything else red
There were sea's.Rivers were a mod.