Caves cannot cut through red sand nor snow blocks, despite these generating as a surface block in several biomes. Sand often falls into caves generated near the surface of a desert or beach craters in the sand can alert the player to caves below the surface. In jungle biomes, vines generate in caves near the surface. Their structure typically consists of a series of irregular tunnels branching off and winding in other directions, which may connect to the surface, creating natural entrances to the cave. They usually feature plenty of ores and are great places to gather resources, but can be dangerous because of the hostile mobs that spawn in the darkness.Ĭaves are underground structures consisting of randomly generated cavities of air, water (in ocean biomes) or lava (at layer 10 and below‌ ), hollowing out an area and exposing other blocks generated with the terrain (such as stones and blobs) in the interior. They are open spaces of various sizes and shapes that often intersect with each another or with different generated structures, creating vast cave systems.

A cave entrance found in a Birch Forest biome.Ī cave (also known as cavern) is a common terrain feature that generates in the Overworld and the Nether.

Minecraft underground 2