Kilgraston School is an independent boarding and day school for girls aged 5–18. The school is centred on a mansion house set in 72 acres (290,000 m2) of parkland, at Bridge of Earn, 3 miles (4.8 km) south of Perth. It is the only Catholic boarding secondary school in Scotland and is located within the Diocese of Dunkeld. The school has links with the boys' school Merchiston Castle School in Edinburgh and occasionally co-organises socials and functions together. Kilgraston has thriving music and arts departments, hockey, tennis and swimming academies, and is Scotland's only school with an on-site equestrian centre. In 2013 Kilgraston was ranked fourth in the top Scottish schools by Advanced Highers. In 2015, Kilgraston was named as the Sunday Times top performing independent school for Highers and Advanced Highers 2015.