The lines on a Saturday in June won't be to bad. If the weather is good, lines for the rides in HW will be the longest (nothing compared to corporate parks) an hour after the park opens and an hour before it closes. In between most of the locals are in Splashin' Safari. Getting a ton of rides shouldn't be a problem!
Don't miss Frightful Falls (log flume,) the Banshee, Scarecrow Scrambler, Raging Rapids and the Freedom Train. The High Dive show and Discovery Institute are great.
Take your swimsuit, Splashin' Safari is a blast! And it is included in the admission price. For a wild ride try one of the slides on Otorongo or the Watubee! Enjoy a relaxing time in the wave pool or lazy river
Kringle's Kafe has great pizza, it's also a nice place to relax on a hot day (A/C.)
The Raven is running in the awesome, insane mode! We got airtime this year in places where we had never gotten airtime before. This coaster truly deserves it's #1 ranking!
The Legend is so intense, From the time you speed down the 1st drop until you hit the brake run, it never lets up. You want airtime, you got it! Laterals, you got them! No wonder it was voted the best new woodie of 2000.
During the day both the Raven and Legend are great rides, but as the day wears on they come alive. Try to catch a ride on both just before the park closes.
The Howler is a fun family ride. After one lap riders are usually asked if they want to ride again.
Food and souvenirs are reasonably priced. Don't forget drinks are free and if you are a coaster club member admission is 1/2 price.
Hope my suggestions are helpful and you have a great time!
Scott(walking, talking billboards for my Indiana parks!)