Crown Cave By Bus

Hi
(1) Where do I take the special bus to Crown Cave? May I have the name of the bus station.
(2) At the station, do I go to a special counter to get tickets or do I pay on board?
(3) What is the fare?
(4) To come back to Guilin, do I wait at the same place when I arrived?
(5) What is the bus schedules to Crown Cave and the last bus leaving from Crown Cave.

Thank you.