Unless I missed it, was any reason given for the Enterprise being in the ocean as opposed to being in orbit?About the Nibiru thing - far as I'm concerned, they're absolutely better off. So they worship the Enterprise? Big deal. At least they're alive.
The original intent was that the operation to quiet the volcano was to be conducted from a shuttle, relatively small and difficult to see through the ash cloud.
And from orbit the ship could have been position above the throat of the volcano, providing the direct line of sight necessary to beam Spock out and would have avoided the natives witnessing the ship rising out of the ocean.
