During our stay at Ocean Tower, the wonderful front desk worker mentioned they offered a locker room where you could shower etc for a late flight after an early check out of your room. When we checked into Kings Land we inquired about similar amenities. (at that time we still thought they were next door to each other). Apparently Kings Land offers Hospitality suites that serve this same purpose and we were able to reserve one for 7:30 pm before our 11:45 pm flight home.
The suite far exceeded our expectations. It was two rooms. One with a tv, small table, chairs and couch. Oh, and AC.
A door on the far end of this sitting room led to the bathroom.
One side was a large shower and opposite a small vanity with the necessities provided.
We prepared here for our long flight(s) back home and were able to start the upcoming 14-16 hours of travel fresh and clean. Admittedly that was difficult to maintain while waiting on our first flight at the outdoor Kona airport ... but alas.