There is a campsite and youth hostel in Glen Nevis and lots of shops in Fort William at the base of the mountain. BNC
If you 're not camping there are bed and breakfasts along the route and youth hostels at Linton, Kettlewell, Dentdale, Kendal and Windermere. WASPS
In addition to the general suitability for school classes, and youth groups of all ages, the beautiful building of the youth hostel is especially recommended to families and musical groups. WebC