Volcanos are naturally generated mountain-like structures/islands located in ocean biomes that spit Lava. They can either be found on jungle islands in the center, middle of some jungle biomes, or by themselves. They are always made up of stone blocks, with lava waterfalls around the area. They can blow lava out from the top and sometimes land in the area. They are slightly rare, and are 40 blocks tall. When the player jumps into the lava, there will be a giant pool of lava at the bottom. Which will kill the player. Along the way though there are "shelves" of stone were mobs and monsters spawn. Sheep and behemoths can be found on the surface too. In which the whole volcano is 40 blocks tall.