Use planks and sticks to make a hoe.

Kill a skeleton with an arrow from more than 50 meters.

Using the Frost Walker boots, walk on at least 1 block on frozen water on a deep ocean.

Cure a zombie villager.

Acquire a map from a cartographer villager, then enter the revealed structure. [Bedrock Only]

Use the Totem of Undying to cheat death.

Feed a dolphin raw cod and have it lure you to treasure.

Use Riptide to give yourself a boost.

Find an underwater ruin.

Discover 17 of 40 biomes.

Use a Dried Kelp block as fuel in a furnace.

Dye your bed a different color.