PTIS, Chiang Mai
The full name of PTIS is Prem Tinsulanonda International School named after the well respected former prime minister of Thailand. The school offers boarding and day facilities with students studyiing towards an international Baccalaureate (IB).
Website: https://ptis.threegeneration.org/
How can you find PTIS? PTIS is located north of Chiang Mai - take the Maerim Road (#107) north from the city - go past Lanna Golf Course (on the left), past Green Valley Golf course (on the right), and through the village of Maerim. Pass the junction which leads to the Maesa Valley (on the left), and then after 1km look for signs to PTIS on the left. The school is several kilometers from the highway, but there are excellent signs to take you there.