I can recall the exact name of the fly--the locals can help out--but these guys will cause a mild itchy sore. I didn't see anyone doing anything about these critters, but I'm warning you--they are a nuisance. I was itching for days afterwards.
The first warning - The guidebooks and website said that there would be a $3 parking fee. However the parking kiosk was not manned and there was also a flea market being held on the Saturday in January that we were there. So we didn't pay the fee. YMMV.
The second warning is that there is a fee charged to pose with the mermaids. I didn't pay a fee, but I also didn't have the mermaid looking at me.
Third - the Wilderness River Cruise runs 10:15 through 1:45 and the boat is limited to 49 people, so all the literature notes that there is limited seating capacity and not everyone admitted to the park will be able to fit onto the boats. Boat passengers must remain seated at all times, and the boat captain reminded us that the birds sometimes sit on the roof or other areas of the boat and that the birds are NOT housebroken.