1. When entering/exiting water, spectators will have their view change, just like they would be in survival mode (or any other) and be swimming normally.
2. Spectators can look up and down while inside water to move up and down. This is not possible when in air and flying around.
3. Spectators trigger the sound when entering bubble columns.

Spectator movement in water should behave like it does while in the air. The way it is at the moment isn't intuitive, in my opinion.