Agreed with ELU...
Just remember, be friendly with the tractor drivers, and they will put your boat in and take it out faster than you ever could

and that the petrol station only takes cash.
Prices ... i cant really remember, but I think its somewhere in the line of R100 per boat and R25 per person for the day...
Braais and some wooden tables are also available on the lawn under the trees and around the pool.
If you need the exact fees, I will be able to tell you tomorrow ...