So if the open time is 10, does the first trip leave at 10 or 11?

10. Every Hour. I am here now and that's straight from the attendant :) be here 45 min before your intended departure time.

I believe they leave every 30 minutes. Call to be sure. Open at 10 pull out 1030 if I remember correctly

I honestly don't know. We were there for a company outing, but judging by the Marine Corps flag flying on the poll id say its likely to move out smartly when open.