Interventions for ADHD need to be constructed in a way which allows them to be conducted for years and it needs to be implemented across settings since ADHD is a chronic disorder. The most common treatment is medication with central nervous system stimulants. This leads to short-term improvements. However, there are several limitations to medication:It is not preferred by parents.Medication is not sufficient to normalize functioning.Medication has a limited impact on key domains of functioning.Long-term compliance is poor.Mediation alone does not lead to good long-term outcomes.The long-term safety of stimulant medications has not been established.Behaviour modification is another common treatment for ADHD. This teaches skills to parents, teachers and children to overcome some of the key functional impairments associated with ADHD. However, outpatient behavioural interventions alone may not be sufficient to improve acute functioning. Effective treatments need to focus on peer relationships (1), parenting (2) and academic functioning (3) as impairments in these domains lead to negative long-term outcomes in children with psychopathology. Social skills training is not efficacious for improving peer relationships although this can be targeted in the recreational settings (e.g. sports). ADHD is often comorbid with learning disabilities. Combining recreational activities with educational activities increases children’s attendance. This may lead to greater benefit from summer schools. The summer can also be used to teach parent skills while working intensively with children with ADHD during the day to help these skills generalize. It is important to maintain treatment over the summer as treatment gains may otherwise be lost.The Summer Treatment Programme (STP) is a summer treatment for children with ADHD which aims to improve children’s peer relationships (1), interactions with adults (2) and self-efficacy (3) while training their parents...