[YorkshireT]

I paid $39 each for the day at the waterpark I think. Keep checking the website once booked, the price fluctuates. Same with the drinks package for which I paid $49 ;-)
No problem getting anywhere to sit. Get into the waterpark early (ship should let you off about 8) and you can do all the rides one after the other, no queuing. They then get quiet again around 3pm.
There's thousands of seats all over. Only one ship was in our day, there can be 2.
Food excellent.
Amazing spot as I said. Take your own facemask and snorkel and go out at the beach where the floating rafts are. Go to the far one, and at the yellow buoy is a part wreck with cannons.