Well I thought the same about the JC but then during one specific ride of the JC around midnight, my GF pointed out that there were also SPIDERS (at least 3-4) in the boat and I am not talking about small ones! One was only about 2 feet away from my legs and I realized, that this was absolutely unavoidable. A boat that runs at night on a river through a man-made jungle under trees and vines in a subtropical climate and has lights on obviously attracts spiders at night. She confessed that she actually saw spiders on most earlier JC rides at night too but decided not to tell me until this one came a little TOO close.
In other words, no more JC at night for me.