We went on Wed June 3. We probably got there a little late as we were driving from Tampa...so about 9:30 am. No waiting at ticket windows at all. And, the park seemed practically empty until about 1:00pm when there was a 60 minute wait for the Atlantis water ride, but Kraken was only a 15 minute wait (we didn't ride at that time, just asked as we were walking by). We were there all day with our kids & they were too short to try kraken/manta, so after we'd done all the things we wanted to make sure they got to do, we finally let grandma take them to arcade area for some games (our waitress at dining with shamu gave the kids some free arcade cards) and dh/I headed over to kraken/manta around 8pm with no lines on either ride. Walk on. It was a great day!