"I'm so excited. I wanted to come here," said the 4-year-old, showing off a one-piece swimsuit under her T-shirt.
The culmination of the event at H. Odell Weeks Activity Center is a splashdown where children and their parents can cool off under the spray from a fire truck.
"That's her favorite part," said Eden's mother, Sara Anzuoni. "She's prepared."
A variety of vehicles were made available for children to explore.
Aiken Public Safety provided a fire engine and police car. RSC Equipment Rental brought numerous heavy-duty vehicles, including a crane and backhoe.
There was a White House Communications Special Center Vehicle from Fort Gordon and equipment from Aiken's public works department.
The event is a popular one, said Alicia Davis, of the city of Aiken Parks, Recreation and Tourism Department.
"It's a neat way for kids to come in contact with something different," she said. "Who gets the chance to get on a fire truck or in a bucket truck?"
Three-year-old Benjamin Ferrick didn't want to give up his seat in one of the heavy duty machines, and once he was out of it, he was ready to climb in the next one.
"He loves trucks. He loves anything with construction," said his father, Kevin.
More than 300 people attended the July 21 event, Ms. Davis said.