Year 8 students at The Corsham School raised £1,360 for their World Challenge expedition to Iceland with a bag pack at Melksham Asda.
The students aim to trek along the famous 43-mile (55km) Laugavegur Trail in Iceland in July 2015.
Pupil Carla Laver said: “There were 18 bag packers altogether over the weekend. We want to extend a huge thank you to Asda and their wonderfully generous customers.”
The trail links two nature reserves and the variety of landscape include mountains, glaciers, hot springs, rivers and lakes.
Those walking along the trail stay overnight at huts along the track or neighbouring campsites as wild camping is not allowed within the nature reserves.