In the movie Moana, the characters fall into a giant cave with a giant coconut cave named Tamatoa. This environment looks like it is underwater:
- Moana encounters giant coral, anemones, and clams here.
- In some scenes, it appears that there are circling fishes above them.
- Fish drop from above to feed Tamatoa.
But the characters do not create bubbles, do not swim here, and are there for a long time.
Is this area underwater? What is the explanation for this strange habitat?