I'm still waiting for at least a few reasons why a submerged Enterprise would be so impossible and absurd.
All I keep seeing is people give reasons why it's possible and how it has happened before.
Someone gave these possibilities:
1. Enterprise's phasers needed down there to disrupt the volcano.
2. Hiding from another space-faring species that may be trying to stop them.
3. Ship had a problem maintaining orbit so they had to hide (from locals) while being repaired