JONES BEACH, N.Y. (CBSNewYork) – There was an alarming arrest at the Jones Beach Air Show this weekend.

Like any beach, Jones Beach State Park is a place where people relax and unwind.

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“I love the beach because it’s a family orientated place,” parent Adeana McNeil told CBS2’s Hazel Sanchez.

It’s not where most parents would think someone was preying on their children.

“That’s disturbing. You don’t want to have to think thoughts like that when you come to the beach at all. Terrible,” another parent said.

On Saturday, why many beachgoers had their eyes in the sky for the Jones Beach Air Show, police say a 21-year-old Suffolk County, Long Island man had his eyes on a little girl.

Police say a woman was watching the air show when she noticed a man taking pictures of her 5-year-old daughter.

When police confronted him, they say they found him in possession of child pornography.

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“It makes me sick to my stomach. It’s very gut wrenching. I don’t want to hear about guys taking pictures of little kids. That’s sick,” said McNeil.

Police identified the man as 21-year-old John Meehan of North Babylon. He faces felony charges of possessing sexual performance by child and unlawful surveillance.

Parents say the arrest leaves them feeling uneasy about one of their favorite family spots.

“You come here to have a fun day and then I have to worry about who’s going to be watching my daughter? No, no, no, this is blowing my mind for real,” one parent told Sanchez.

“You just gotta be aware and know what’s going on. And watch your kids,” another said.

And watch who may secretly be watching them with criminal intentions, Sanchez reported.

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Meehan’s home was searched and all of his computers were seized.