People from all over the region gathered at Wollondilly Community Leisure Centre to swim more than 260 kilometres for the cause, smashing the target of 65km.

The Advertiser organised the event to support the 80 people living in locally with the life-threatening condition.

But it could not have been done without the generosity of this community who gave their money, time and resources.

People from all walks of life jumped in the pool including C91.3 drive show presenter Mike Goldman, community radio host Steve Platts, local MPs Phil Costa, Geoff Corrigan, Andrew McDonald and Graham West, paralympian Paul Nunnari, president of the Wollondilly North Rotary Club Stuart Dench, Campbelltown councillor Jai Rowell, Camden councillor Greg Warren and Young Liberals Brett McGrath and Michael Shaw.

Steve Wisbey from My Gateway MCed the event and a long list of hard working volunteers counted laps, registered swimmers, painted faces, braided hair and sold raffle tickets to help raise money.

Celebrity swimmer Mike Goldman impressed the crowd with his fluro green 'mankini' and his very own sideline coach who encouraged him through a megaphone.

Goldman raised $2650 for the cause and said it was great to be able to support local kids living with CF and their parents.

The families and friends swam in great numbers to support their loved ones. Team Corey, Team Julia and Team Lozza put in a gallant effort and combined raised more than $15,000.

Manager of Wollondilly Community Leisure Centre James Barnes donated the pool space and pool entry fees for the day.

The Lions Club of Tahmoor raised $1000 at the barbecue and more than $1200 in raffle tickets were sold thanks to Rosemeadow resident Hank De Rou who collected the prizes.

The team from ANZ Tahmoor counted and bagged all the money raised throughout the day in between swimming their own laps.

CEO of Cystic Fibrosis NSW Helen Griffith said the money raised would help make a difference to the lives of all those fighting to survive.

''Congratulations to the wonderful swimmers who took part in the swimathon,'' she said.

''The swimmers raised a record breaking amount.''