Trampolining has become increasingly popular both in the Cystic Fibrosis and general population. In light of the dangers associated with trampolining we surveyed a sample of our outpatient CF population. We found that over half the group questioned used their trampoline on a daily basis, both as a form of exercise and for some as an alternative to physiotherapy. There were no reports of injury that required medical attention. We plan to encourage continued use of trampolines with the introduction of safety guidelines, reinforcing that trampolining is an adjunct to and not a replacement for regular physiotherapy.