And they intend on taking the division one flag with them.

A pioneering powerhouse of the women's competition, an AFL NSW-ACT restructure means the Saints will now have two teams in the South Coast league next year.

They take on Manly-Warringah on the grand final at Blacktown International Sports Park, who they've beaten three times this year, including a dramatic four-point triumph in the major semi-final.

"It's our last hurrah, so we want to take it out," club president Casey Moane said.

"We've spoken about how we want to finish and what we want to get out of the season, it's a big opportunity in our 10^th year, before we move our Sydney team back to the South Coast competition. It's bittersweet I guess, we're happy to be there again in the grand final and we've done really well during our time in the Sydney competition, but this is it."

Forming in 2010, the Saints won premierships in 2011 and 2017 and have been in the past four grand finals and have played a role in the careers of former Giants and West Coast recruited talent Maddy Collier, as well as AFL Sydney's leading goalkicker Rylee McGartland and GWS Academy player Cate Stanton.

With a second team in the AFL South Coast competition, the Saints will align with Figtree next year.

"We've got a great relationship with Figtree," Moane said.

"We worked well with them when we established the club, so it's come full circle really."

While you're with us the Illawarra Mercury is offering sport readers 20% off an annual digital subscription. Sign up to stay up to date with all the local sports you love for only $3 a week. Terms and conditions apply.