We are here this week and are experiencing Spring Break crowds, so I would imagine similar to summer. I would agree with the advice to go early and hit everything...the longest lines we've noticed seem to be at Kare Kare Curl, the family slides, and probably the body slides. We found all of those too busy to do after the first couple of hours. Tassie's Twisters gets a long line, but it moves fast. Dolphin Plunge seemed to go in waves, the Racers we could really walk on anytime. It is a nice park...the kid's play area was on of the best we've seen and there is plenty to do once the slides get crowded. Hope that helps!