Jonathan Catlin took his sweet time to size up the dive. The 10-year-old from Goodview eyed the Bob Welch Aquatic Center diving board carefully as he made his way up the steps to the platform, both hands on the railing.
He reached the back of the board and slowly made his way past the fulcrum to the tip of the board, his green-and-black trunks still dripping from his last dip into the cool water.
He tested the spring of the board, slowly at first, adding a little more force each time, until he was satisfied.
Returning to the back of the board once more, Jonathan turned to face the water. He sprang forward with two quick steps, hit the end of the board and leapt into the air, executing his best swan dive.
Jonathan was one of many - about 160 in the first 30 minutes - taking advantage of the aquatic center's opening day Monday, as temperatures reached the low 90s.
The National Weather Service has issued a hazardous weather outlook for Tuesday, with a possible high of 99 degrees and heat indices expected to hit triple figures, getting as high as 105.
"If the weather stays like this," said Kirsten Hefte, recreation coordinator for the Winona Parks and Recreation Department, "we'll have record attendance."