Students at King Edward VI School faced the heat of China and the cold of Iceland as part of an advanced leadership programme.
Twenty two student leaders from the Bury St Edmunds school visited the Pudong New District, in Shanghai, where they taught English and sport to Chinese children, navigated their way around the city and gave speeches to more than 2,000 students, government officials and business representatives.
It followed a visit by 27 Chinese students to King Edward VI as well as Great Whelnetham and Ickworth Park Primary Schools as part of the Bury Schools Partnership activities.
Meanwhile, 19 leaders battled cold and tough terrain during their visit to Iceland.
It was based around their ongoing geography project on plate-tectonics.
Rob Walden, who is repsonsible for student leadership and enrichment at King Edward VI, said: “We believe these experiences are life-changing for students and we aim to bring learning alive like this as often as possible both with practical experience here in the UK or through these types of ambitious international exercises.”