Published: Aug 19, 2014 5:36 PM EDT

CAPE CORAL, Fla. - Lightning and storms can delay football practice for the Ida Baker high school Bulldogs, but not the heat.

Even as temperatures soared Tuesday, with heat indices above 110 degrees, the Bulldogs and other teams across Southwest Florida hit the practice fields.

Coaches are trained to recognize any signs and symptoms of heat exhaustion in their players.

"We make sure they get about 25 minutes of water breaks and actual down time [during a two-hour practice]," Ida Baker athletics director Brian Conn told WINK News.

"The key is they have to hydrate before practice," Conn said.  "If they wait to drink something when they're thirsty, it's too late."

Signs and symptoms of heat exhaustion can include dizziness, fatigue, and headache.  Untreated, heat exhaustion can lead to heat stroke, which can be much more serious.

Elsewhere in Lee County, children splashed in the water at Lakes Park.

Becky Coker, who brought her six-year-old son to the park, said she was surprised by the heat so early in the day.

"I really wasn't thinking about it until I sat out here and realized just how hot it was," Coker said.

In Naples, the heat index hit 114 by mid-afternoon.

The elderly and those with medical conditions can be most susceptible to the heat.  Officials encourage neighbors to check on each other from time to time.

Pets are also susceptible to the heat.  If you have an outdoor pet, experts say make sure it has plenty of water and a shady place to stay cool.