International Summer Schools For 13-18 Year Olds - ISSOS
 ISSOS operates summer schools in Scotland, England, and the USA for students aged 13 to 18, focusing on academic learning and creative enrichment. The three-week program provides high school students from various countries the opportunity to participate in a structured environment while exploring historic university towns. 
- Academic summer school programmes
- Elective courses in various subjects
- Cultural trips and evening activities