NEW YORK (CBSNewYork) — Dozens of people took a dip in the freezing cold water in Breezy Point on Saturday, all for a good cause.

The 20th Annual Rockaway Plunge raised money for cystic fibrosis, but this year’s dive took on a special meaning.

READ MORE: Vaccine Mandates For NYC Teachers, State Health Care Workers Head To Court

Cystic Fibrosis: In Breezy Point, A Plunge And A Remembrance For Annie McMahon

Many took the plunge with a heavy heart.

The plunge’s number one sponsor, Annie McMahon, died in July at the age of 22.

READ MORE: $432M Winning Mega Millions Ticket Sold At Manhattan Pizza Shop

McMahon battled the illness for years with a courage that was an inspiration to so many others fighting the fight.

Watch: Annie McMahon Remembered, Helped Fight Cystic Fibrosis

But McMahon’s spirit was alive and well among the many who had the guts to jump in, including CBS2’s Dick Brennan, who made his 14th plunge along with a hearty crowd that was all in for a good cause.

MORE NEWS: Actor Willie Garson, Best Known For 'Sex And The City,' Dies At 57

If you like to help in the fight for a cure, visit helphopelive.org.