Published: Jul 15, 2013 5:01 PM EDT
Updated: Jul 15, 2013 6:22 PM EDT

NAPLES, Fla. - "Each kid has their different abilities and we'll work with each one of them and give them the best exposure that you can do the game,' said Kevin Walker, the Tennis Manager for the city of Naples.

A game that many of these summer campers can't even see, but are able to hear.

"Some children were born with an eye condition and they can be totally blind, or we have some children who have lost their vision due to an accident," said Katherine Peck, the Executive Director of the Lighthouse of Collier.

"Oh my goodness, well you don't need any vision to hear their reaction once they hit the balls," said Peck.

The game is played with a ball the size of a softball. But inside is a ping pong ball filled with ball bearings.

"I'm blind, but theres a special thing," said camper Sarah Hardwig. "So tennis is actually kind of easy for me."

The balls cost about twenty dollars and a donation specifically made to their tennis program allowed them to buy more tennis rackets and foam tennis balls.

"They're worth every penny," said Peck.

And for the parents, like the father of ten year old Sarah Hardwig, he said the time on the court is priceless.

"It's just a great experience for her to get out and do something thats a sport," said Greg Hardwig.

For more information on The Lighthouse of Collier, check out http://www.lighthouseofcollier.org/