A secluded stretch of woods blocks from the home of the alleged Gilgo Beach killer could be harboring more bodies, says a former NYPD cold case detective who is urging investigators to comb the area with cadaver dogs.

The Massapequa Preserve is a 430-acre expanse of trails that stretches six miles from Merrick Road to the Southern State Parkway — and is a short walk from the home of accused serial killer Rex Heuermann.

It connects to the low-lit, two-lane Bethpage State Parkway to the north.

“There is this long, dark road that you can take and you could just pull off on the side of the road, do what you got to do, get back in the car and go,” said Joseph Giacalone, a retired sergeant from Long Island and author of “The Cold Case Handbook.” 

“No cameras, nothing like that. No traffic lights. It’s an ideal place,” Giacalone, who is also a professor at John Jay College of Criminal Justice, told The Post.

The area is secluded and overgrown like Ocean Parkway, where the bodies of three women Heuermann is accused of killing were found in the brush in 2010, and where more than 10 sets of remains were discovered through 2011.

“Usually serial killers have a cool-off period, but not 10 or 11 years,” said Giacalone.

“It would be kind of unheard of. So it would mean to me that the person would have to find a new place to dispose of his bodies.”

Suspected serial killer Rex Heuermann — a New York City architect and married dad of two — was arrested in connection with the long-unsolved Gilgo Beach murders. The arrest is tied to the so-called “Gilgo Four,” women found wrapped in burlap within days of each other in late 2010.

The years-long investigation that led to the arrest revolved around the discovery of more than 10 sets of human remains along Ocean Parkway near Gilgo Beach in Suffolk County between December 2010 and April 2011.

Most victims were petite female sex workers with green or hazel eyes. But there were also two exceptions: a 2-year-old girl and a young Asian man.

He is not the only one to realize the location is a prime spot to dump a body.

In 2019, a decomposing corpse believed to be a victim of the MS-13 gang was found in the preserve and two years earlier, two members were charged with hacking a teen to death there.

Heuermann, an architect and married father of two, was arrested on July 13 and charged with the murders of Melissa Barthelemy, Megan Waterman, and Amber Lynn Costello, and is the prime suspect in the death of Maureen Brainard-Barnes. The women make up the “Gilgo Four” and had all worked as escorts.

Heuermann’s Massapequa Park home is just half a mile from the preserve — about 15 miles from Gilgo Beach — and in the days before his arrest, a young woman reported a disturbing encounter with him at Brady Park, which borders the preserve.

Ally, a 25-year-old from Long Island, told The Post that Heuermann approached her on July 3.

“He had very dirty clothes on. He popped right out of the woods. Everywhere I went in the woods he would pop out somewhere,” she said.

The encounter left her so spooked, she called her sister to pick her up and filed a police report.

She was horrified to later see Heuermann arrested in connection to the Gilgo murders.

The arrest came after the Suffolk County Police Department reopened the case with a newly formed task force.

The SCPD would not say whether the preserve and parkway had been considered for investigation and could not release information on future search locations.