Ocean update

I think Minecraft needs to update their oceans, right now they feel flat and boring and there are barely any mobs or structures. I think it would be a game changer with new ocean biomes and structures that actually contains something unique like the sponges that makes a purpose to explore the oceans. Maybe add a new enchantment. But one of the most important things is to make the oceans deeper which would make it way more interesting and exciting. And i wish to see new biomes like to coral reefs with beautiful plants and structures and new mobs and pets. This would also fit perfectly with the new nautilus that makes ocean exploring and navigation much easier.