This is a special school, which provides a range of provision across Portsmouth for students with social emotional mental health and/or medical needs. There are five school sites and a hospital school at Queen Alexandra Hospital. The school provides a Multi-Agency Behaviour Support Service, a Targeted Mentoring Support Service, and a Young Parents’ Support Service. The Harbour School at Tipner provides special school and alternative provision for students aged nine to 13 who have been excluded or are about to be excluded from their mainstream school. Tipner is also the site for 'Harbour House', a residential provision for a small number of students on a rotation basis when needed. The residence was not part of this inspection. It was judged outstanding when it was inspected in February 2015. The Harbour School at Fratton provides special school and alternative provision for students in Key Stage 4. A small number of students in Year 9 also attend this site. The Harbour School at Cosham provides medical special school and alternative provision for students aged 11 to 16 who have high levels of anxiety and/or autism spectrum conditions, such as Asperger's Syndrome. The Hospital School is managed by leaders at Cosham and provides learning to students of all ages who are admitted to hospital for a period of time. The Harbour School at Milton provides individual tuition for students aged five to 16 who are too ill to attend school. There were no Key Stage 1 students at the time of the inspection. The Multi-Agency Behaviour Support Service, the Targeted Mentoring Support Service, and the Young Parents' Support Service are all based at this site. The Harbour School at Stamshaw provides special school provision for students aged 11 to 16 with severe and complex emotional mental health and/or medical needs as an alternative to out-of-city placement. Most students have dual registrations with their mainstream school. Some are single registered and those who start at the school in Years 10 and 11 almost always stay at the school until they have taken their examinations. Many students have been out of mainstream schools for a considerable period before attending this school. About 20 per cent of students have a statement of special educational needs or an education, health and care plan for their social, emotional mental health needs, their autism spectrum disorders and/or learning difficulties. Almost all students are of White British heritage. The proportion of students supported by the pupil premium is above average. This is additional funding for students known to be eligible for free school meals and those children who are looked after by the local authority. Vocational opportunities for students in Key Stage 4 are provided by Southdowns College. The vast majority of students go on to college or go into employment when they leave the school at the end of Year 11.