Minecraft wiki entry for Savanna, associated text: The rare windswept savanna variant generates in areas with high erosion and very low factor, which means that the terrain is arguably the most chaotic in the game, a contrast from the otherwise flat savanna. The terrain is covered with a mixture of grass patches and stone patches, with coarse dirt in between. It is full of extremely steep mountains, enormous overhangs, floating islands, and huge waterfalls and lavafalls, with higher and rougher terrain than the windswept hills biome, and can often go past y=200. Llamas cannot spawn and villages and pillager outposts cannot generate in this biome, though horses and other passive mobs remain prevalent on the cliffs, and trees can still spawn naturally. Enormous deep lakes often form on the bases of the mountains. The steep generated mountains make this variant almost entirely unsuitable for shelter, and even just exploring quite hazardous, due to the sharp cliffs often risking fatal fall damage if not above water. Additionally, the giant overhangs often reduce skylight on the terrain below them, not only enough to spawn hostile mobs in daylight, but to produce complete darkness similar to caves, further adding to the difficulty of this biome. In Bedrock Edition, the foliage is a more vibrant green color, and rain can occur in it.[2]