Deep frozen oceans are a biome in Minecraft that are popular for their enormous and towering icebergs made from ice and snow. The ocean's depth in this biome is much deeper than regular frozen oceans. They have some mobs spawn and some vegetation that generates underwater.
The deep frozen ocean biome is a variant of the frozen ocean. This ocean is colder and deeper than its counterpart. Large towering icebergs made of packed ice and snow blocks are found here, which makes it easy to identify. The oceans are quite deep and cold which only allows a handful of mobs to spawn.
You can find a few wildlife mobs and some hostile mobs here. Salmon, squid, and dolphins can be found in the deep frozen oceans, while you can also find polar bears roaming on the ice. Hostile mobs such as creepers, skeletons, spiders, endermen, witches, and zombies will spawn at night.
The Deep Frozen Oceans are a deeper and colder variant of oceans. They are easy to recognize due to the generation of humongous icebergs that can be found floating in them. Wildlife mobs don't have a lot of variety to them but the hostile mobs spawn the same. The only vegetation you will find includes seagrass and kelp.
A. Below the ice, you might be able to find ocean monuments where guardians look after the ancient treasure.
A. Yes, snowfall actually occurs heavily and quite often in the deep frozen ocean biome.
A. Yes, it is quite rare to come across a deep frozen ocean biome as it is one of the most unique biomes in the game.