Thursday marked day six with temperatures well above ninety degrees and that sent people flocking to the water.
For evidence, all you had to do was visit any beach along the Lake Michigan shoreline.
Park officials say Thursday could turn out to be the busiest non-holiday weekday for attendance so far this summer.
"Oh man it's so refreshing. I’m sitting in this heat and then I jump in the water and it’s an automatic relief right away,” Syracuse resident Cassidy Parker said.
Cars started filing into the park just as soon as the gates opened early Thursday morning.
A brave few hiked to the top of Tower Hill which sits 260 feet above Lake Michigan and grants views spanning across the near 2,000 acre park.
But most everyone else grabbed a cooler, some lawn chairs and an umbrella before plopping down on the three-mile-long beach.
"It’s really the first day I’m able to enjoy summer and go out to the beach. I haven't been out in awhile working 85 hours every two weeks or so,” Wheaton, Ill. resident Gerardo Trujillo said.
Last week, Lake Michigan temperatures were unseasonably cool, dipping into the low fifties!
This week however, things have greatly improved with water along the Berrien County shoreline registering at eighty degrees.
"We picked a very good week to go on vacation. Wednesday was a little hot, but today is gorgeous! There are winds today and some more waves,” Kokomo resident Kerri Smith said.
"My husband is at home right now working with no air conditioning at his job so he'll be very jealous if he sees me on television,” Oswego, Ill. resident Sue Liskunas said with a laugh.
But it’s not perfect all around.
Washington Park Beach in Michigan City is under a contamination advisory. On Tuesday, tests showed higher than average E. coli levels, which have yet to drop. Although the beach is still open, park officials say you must swim at your own risk.