The ferries whisk by every 25 minutes, the seagulls are still shrieking above and the ballpark still overlooks the postcard-perfect Manhattan skyline on a cloudy day. The scene screams déjà vu for the Staten Island Yankees’ first-year manager David Adams, but he gently laughs at the suggestion he’s thinking about himself and changes the subject.

The 32-year-old would rather talk about the melting pot of teenagers and 20-somethings behind him, bantering, scrolling through their phones and taking turns posing in front of the city they hope to rule like Aaron Judge one day.

Adams is one of the very few to emerge from The Forgotten Borough to eventually reach the Bronx, if only for 43 games in 2013. Brett Gardner and Robinson Cano are the most famous S.I. Yankees alumni, and for most of these raw rookies, Yankee Stadium might as well be as far away as Jupiter — so Adams pledges to prepare them for a future on the diamond and beyond.

Several minutes pass and the dugout, littered with sunflower seeds and paper cups, quickly empties as players trot onto the velvety, green grass to stretch. Adams turns, faces Manhattan and suddenly shares the other reason he’s back on the field he first stood on 11 years ago.

“It’s a dream of mine, a goal of mine to get back to the big leagues at some point and time,” Adams tells The Post a day before his managerial debut, a 5-4 loss to their Mets’ counterparts, the Brooklyn Cyclones on Friday. “And to be right across from the water …” Adams says, before quickly acknowledging baseball’s grim reality.

Adams knows first-hand it’s a very long way from Staten Island to the big club in the Bronx, where there are charter flights, not bumpy bus rides, and first-class hotels instead of college dorms.

Adams — who once said he’d play baseball until 40, but a series of ankle injuries plagued the second and third baseman’s career — is perhaps best remembered as the centerpiece to the Yankees’ failed attempt to acquire Cliff Lee in 2011. Adams’ injury history scared off the Mariners and the trade fell apart, as did Adams’ career. He retired after one year in the Venezuelan Winter League at age 29 in 2017.

“I thought that he was going to have a much longer, more successful career than he did,” said Gardner, whose No. 6 from the 2005 season hangs over Richmond County Bank Ballpark.

He was to be “our next big thing,” former Yankees minor leaguer and current S.I. coach Tyson Blaser said.

“What I liked about him was the tenacity, he was determined to come back from the injury no matter what,’’ said Stump Merrill, who worked in the Yankees minor league system when Adams was moving up.

Adams, again, is rising. Merrill thinks Adams has the tools to be “a helluva manager” and Kevin Reese, the Yankees’ senior director of player development, touts Adams as an up-and-comer.

The Florida native was tapped as the short-season Single-A manager after one season in the same role with the Gulf Coast Yankees West, one of the organization’s Rookie League affiliates, and is aware coaches and managers, like prospects, bounce around the farm system like pinballs.

“To me, it was a no-brainer [to take the job],” said Adams, who spent his first year coaching in 2017 as a defensive coach with the Gulf Coast Yankees East. “I know how much emphasis they put on here, it being so close to New York, it’s no easy task, I took [the manager job] as a challenge and just ran with it.”

The challenge is a little different now. Adams was a 21-year-old, third-round pick when he made his professional debut with the Staten Island Yankees in 2008. Now he has a wife and two boys — 5 and 3 years old — staying back home in Florida.

“My 5-year-old was crying for two days straight,” after Adams told him he may not see him until the season ends in September.

It’s a sacrifice he’s willing to make for the Staten Island Yankees, who see Adams as proof that their dreams, which were once his, aren’t impossible.

“You just see that and you’re like, ‘Man, this guy made it,’” said Alex Junior, whose 19th-round draft pick status gives him an estimated 10% chance of reaching the majors. “He wants us to get there hopefully.”

Adams hopes the same for himself.

Additional reporting by George A. King III and Ken Davidoff