The Seahawks were held to just a single Shaun Green goal as they stumbled to an 8.10 (58) to 1.5 (11) loss.

Batemans Bay was kept scoreless in the first quarter, then managed only three behinds in the second as ADFA raced to a 5.5 (35) to 0.3 (3) lead.

The Seahawks only goal came in the third period, but ADFA continued to press the issue with two goals of its own to lead by 38 points at the final change.

The home side continued to dominate the fourth quarter, but only scored one more goal in the win.

The Seahawks' loss means they've failed to beat top-two sides ADFA and ANU in five attempts this season.

Head coach Mick Kenny said his side's lead up was less than ideal.

"It was a pretty rough week for us," he said. "We lost Josh Visser and Ross Hummel throughout the week through injury, and Blake Gleeson broke his wrist during the game.

"Everyone was probably losing interest in the second half, and it felt like we were limping to the finish line. It was just one of those days."

Despite the loss, Kenny is still proud of his side's season.

"If you had told me at the start of the year that we'd be playing in a prelim, I would have seriously doubted you," he said. "Even halfway through the year when we lost to Googong it felt unlikely.

"There were some doubts we'd even play finals at one stage, but we dug in really well for the last six weeks of the season and got ourselves within a game of playing in another grand final."

Kenny believes this season will springboard the Seahawks into another era of dominance.

"I've told this group plenty of times that I haven't coached a more talented team," he said. "Once they get a bit more experience and consistency, this team will be a powerhouse for the next four or five years.

"They need to hold their heads high and be really proud of what they've achieved this year. We had a lot of doubters throughout the season, but they stuck together well.

"The boys knew the game was out of reach during the third quarter on Saturday, so we made sure the last quarter was about walking off proud, and busting our asses one last time."

The loss marked Kenny's final match as head coach, the end of a four-year stint that saw him bring the club's first senior premiership in a decade.

"I'm really proud of what I've done here," he said. "We've made the finals every year, and to win a premiership as well was amazing.

"Footy and loyalty didn't mean a lot to me until I came here. The club was in a bit of a shambles when I took over four years ago, and it took a lot of hard work just to get the reserve-grade side back up and running.

"I'm still open to playing first grade, but my coaching career is done now. I had to hold back a few tears walking off the ground.

"It's been a wild ride the past four years, and I've enjoyed every bit of it, but it's time for me to slow down and spend more time with my family."