SUPER-FIT members of a gym will be taking on a marathon series of gruelling exercises to raise cash for Cystic Fibrosis.

Rebecca Ciel is tackling a marathon on the rowing machine while Gary Nicholas and John Currel will be doing 3,000 step ups with weights.

Sarah Connolly is taking on 3,000 sit-ups and Trudie Mansfield and Tony McGarr are cycling 100km.

And it does no stop there as Chris Purkiss will be running a half-marathon on the treadmill.

The events takes place at the Calso Health and Fitness Centre, Letchworth Drive, Bromley, on September 9.

Gary said: "Each of these events requires a huge amount of mental commitment as well as physical strength and endurance.

"Many of Calso's members will be helping the marathoners complete their times, repetitions and distances by doing smaller amounts with them."

He added: "The club aims to create a great atmosphere which will help lift them and encourage people to give to Cystic Fibrosis."

The centre held a similar event six years ago and raised nearly £2,500 and they hope to do the same again, if not more.

To make a donation, send cheques, made payable to Cystic Fibrosis Trust, to Calso Health and Fitness Centre, 28-30 Letchworth Drive, Bromley, Kent. BR2 9BE.