Jon Gosselin caught on videotape – sneaking around with a hot young blonde while wife Kate and their eight children were hundreds of miles away!

Surveillance cameras recorded Jon’s secret date at a New York bar, and the footage – obtained exclusively by The ENQUIRER – reveals the 32-year-old reality TV star abandoned his blonde companion and scurried out the bar’s back door when he spotted a photographer.

His new friend is 23-year-old Hailey Glassman, daughter of the plastic surgeon who performed 34-year-old Kate’s tummy-tuck surgery – documented on their TLC network show Jon & Kate Plus 8.

Jon’s secret "date" with Hailey was caught on videotape after the two slipped into the deserted dining room of the Bourbon Street bar in Nyack around 3:30 p.m. on May 24.

"Jon and the young woman sat across from each other in a booth in the back of the restaurant," an eyewitness divulged.

"She was hanging on every word he said, and looked really happy to be with him."

While Jon has publicly denied he’s romantically involved with Hailey, a friend of Hailey’s confirmed to The ENQUIRER she’s been secretly meeting with Jon.

While Jon was sneaking around New York, a beleaguered Kate and the couples 8 kids were enjoying a working vacation on Bald Head Island, North Carolina with Kate’s bodyguard reported BF, Steve Neild.

To see ALL the surveillance video frame grabs, learn about Jon’s out-of-control boozing and see what Kate & Steve plus 8 did– GET the FULL STORY you won’t find anywhere else – get the new ENQUIRER before it’s sold-out!