Kimberly

My kids are I are cruising (two teenagers and a nine year old) on the Oasis and the Atlantis Aquaadventure looks really neat. I did see it doesn't open till 10 AM though and we are leaving port at 3 pm. (Arrive at 8 AM) I read it was crowded and there isn't really enough time to enjoy. Long lines and such. Could anyone give me any insight on this? If we don't do that what would you recommend? My kids are pretty adventure oriented. This is our first time cruising.