[quote] Search and rescue pros explain how Cameron Robbins likely vanished after diving into the sea

GRAPHIC WARNING: The following report contains details that some might consider graphic in nature.

Grainy cellphone footage shows recent Louisiana graduate Cameron Robbins swimming in Bahamian waters at night, but as the camera pans left for a second he disappears — never to be seen again.

Some claim the video appears to show a shark closing in on the 18-year-old, but longtime scuba and marine seach and rescue experts explain to The Post how several other outcomes need to be considered and explain why they think his body is yet to be recovered two weeks later.

Efforts by the coast guard from nearby Nassau and Robbins’ family were called off after two days when no trace of the teenager were found.

Wednesday will mark two weeks since Robbins, a high school athlete, disappeared, leaving his grieving family without answers.

“He was lost at sea after being reported missing off the coast of Athol Island in the Bahamas on the evening of May 24,” states a recent obituary honoring the beloved brother, son and grandson.

“Though he left this world far too soon, he lived a life full of good friends and family He was funny and kind-hearted, but also intense and driven.” Was it a shark attack?

Robbins graduated from the University Lab School in Baton Rouge three days before he vanished in the “shark-infested” waters off Athol Island in the Bahamas.

He had leaped from Blackbeard’s Revenge, a pirate ship-style vessel, just moments earlier.

The haunting video footage shows Robbins swimming away from a rescue buoy as onlookers shout for him to grab the device.

The shadow of a mysterious being can be seen in the water just feet from where he swam.

Internet viewers speculated the object was a shark which pulled him under. But experts largely reject the claim.

“We’ve consulted with oceanography and fisheries experts,” said Brian Trascher, vice president and spokesperson for the United Cajun Navy, a non-profit that has worked with the Robbins family. “They don’t believe … that he came in contact with any time of shark or predatory marine life.

“And until we get better video or something more conclusive, that’s going to be our position.”

Butch Hendrick, president and founder of public safety dive training company Lifeguard Systems, has spent decades familiarizing himself with the Caribbean waters, including off the Bahamas.

“I don’t hear about a lot of shark attacks in the Bahamas,” he told The Post Friday.

He noted that boats such as the one Robbins and his classmates had been on, often serve food that is then dumped or spilled into the water, which can attract marine life, such as sharks.

Marine life, such as sharks, are “smart enough to realize that’s a boat that comes out all the time and it’s going to have food coming off,” Hendricks, who has developed rescue methods in 15 countries, told The Post.

But the behavior of the object seen in the water with Robbins was not indicative of a shark.

“The tendency is not that [the shark] came in, took him, and took him to the depth,” Hendricks went on.

He noted the lack of any sign of blood in the water.

“They would hit him, that could be enough to totally incapacitate [him]. That could be enough to cause him to drown right there.”

Further, it’s unusual for a shark to actually finish eating a human it attacked, he noted.

“The tendency more often is to take a bite, shake and decide this isn’t what they wanted,” he said.

As for tiger sharks, which are known to swim in the waters off the Athol Island, “they can take a very large chunk,” Hendricks said.

“But the concept that they came back and ate more is slim.”

What did happen to Cameron Robbins?

Cristina Zenato, a longtime diver and Bahamas-based shark and ocean conservationist, told The Post she was not involved in the case at all, but suspected Robbins could have suffered hypothermia, then drowned.