We were there last year, we booked it here:
Nassau Hilton Resort Day Pass it was $40 for us adult but it comes with a $30 vouchure for drinks and food

Kids are $20 that price and the came with a food vouchure too
Its a lovely resort and its in the perfect location, no taxi needed, you want walk from the port. Food and drinks were excellent as was the service. I'd recommend going there for sure!