Do you have to pay to seat on the launch chairs ?

No, but there aren't many

No payment for lounge chairs. First come, first serve. Not much shade though. You can also reserve a cabana for the family in advance. They are really nice. They were all booked when we got there. Just fyi.

There is many chairs for free in front the main pool, but you can pay for a little like beach tents they have on the back. Also they have family cabins you can reserve.