Here is the full list of all 12 ABZÛ achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Complete the adventure.
Discover the polar region.
Breach the water on the back of a blue whale.
Discover those that lurk in the abyss.
Ride the Great White Shark.
Burst 15 fish schools in the jetstream.
Find all the meditation statues.
Release fish from all the hidden pools.
Witness predation while meditating.
Leap from the water.
Perform a flip while riding a creature.
Add all secret shells to your collection.