EDIT 08/29/24: I've made a second version of my Yoshi underwater animation with a few tweaks and an extra camera angle at the near end.

A sleepy Yoshi is laying underwater on the seabed. This green aquatic dinosaur is very harmless and friendly to anyone, human or not. The next time you plan your dive session, you'll most likely encounter and approach this creature.

Rendering this animation took about 18 minutes and 40 seconds.

EDIT 09/02/25: I went back to my first Yoshi underwater animation from last year and made a few tweaks in terms of Color Management, Ambient Occlusion, Shadows and the Bubble Material. The end result was interesting to look at.

Samples used: 128
Time to render: Approximately 42 minutes (4.5 seconds per frame)

Bubbles created with the real-time bubble generator

Model creator: NDY (as part of 

TribalDragon

's Ultimate Yoshi pack for Blender)