everything on the scavenger hunts can be found on a ship. and i do mean everything.. you may have to ask passengers or workers for the items but they are attainable. the activities range from all sorts of things from late night swims, hot tub parties, guitar hero playoffs and sooooo much more. i was in club o2 and my sister was in circle c our last 3 cruises and we both got in at night around the same time which was usually 2 or 3am. haha we would both go after the club closes to eat pizza and ice cream and then just walk around a bit to chill out and then head back to the cabin for some rest. but the on shore stuff is only in one port and ive never been on any of them so i cant really relate to that one.. but i hope everyone has a great time! =))