Training will take place at the Cargo Gym at the Saffrons Sport Ground from 10am on July 16.
During the full 24 hours there will be circuit classes running, with each circuit lasting one hour.
Sam Parish started Cargo Gym last year and came up with the idea for the challenge. It will perform the full 24 hours.
Sam said: “It seemed like a good challenge and a worthwhile cause that will hopefully inspire people to give more to Samaritans because of the nature of the challenge. It should hopefully attract more eyeballs.
“We started working with the Samaritans Eastbourne last Christmas when we held a Santa training session – everyone dressed up as Santa and all the money went to the Samaritans.
“We chose them because of the link between exercise and mental health and the positive impact exercise has on mental health as well as physical benefits.
“Covid has also shown how important they are and the help they are giving. They are a great cause.”
You don’t need anything to get involved, just sign up and show up. All abilities are welcome.
Cargo Gym is an outdoor gym experience that runs small group gym classes led by personal trainers. The 45-minute fitness classes offered are either a cardio circuit or a strength-training circuit.