Underwater Advancements Tab

Currently in the game there are very few water-themed advancements although oceans are full of features, beautiful biomes and structures.

adding an underwater tab would notify new players of the content in oceans.

It would be a tab similar to the husbandry one.

Here are some valid advancements:

Power of the depths: Build a full conduit.

Aye aye! Captain!: find a buried treasure.

The temple at the bottom of the sea: Find an ocean monument. (Similar to find the nether fortress)

Coral grower: grow coral with bone meal.

Friend dolphin: Give a dolphin an item to play with

These were my ideas! I hope to hear more in the comments!