Cardiovascular disease (CVD) is the leading cause of death in France for women and the second leading cause of death for men after cancer. They cause around 140,000 deaths every year, or almost 400 people every day throughout France. CVD also accounts for over a million hospital admissions a year, 160,000 of which are attributable to heart failure. At present, cardiovascular rehabilitation centres mainly use exercise training methods based on sessions on cycloergometers and active walking (walking on a track and/or treadmill). Convinced of the added value of Orienteering, we have included it in our routine treatment as part of our Cardiac Rehabilitation programme, in addition to sessions on cycloergometers and active walking since 2021. As there is little literature on the subject in our population of interest, the aim of this study is to provide evidence of the relevance of orienteering in the cardiac rehabilitation programme. We hypothesise that orienteering induces a similar cardiac response, amount of physical activity and perception of symptoms compared with an active walking session, while providing greater enjoyment of the activity.