Congenital heart disease (CHD) describes heart defects present from birth. The majority of affected patients will require lifelong care to not only manage their medical condition, but also to offer support and guidance on living with their specific heart condition. Exercise and physical activity is one such area where patients often require support and advice. Recommendations are in place for health care providers to promote physical activity for this patient population. However, many health care providers find it difficult to know what level of exercise is reasonable or how to escalate current exercise programmes.