Activities are an integral part of Scouting, and what makes it so exciting for the young people involved. From here you should be able to find all the information you need to provide all the activities your young people can manage.
As a starting point we would suggest you look at the A-Z of Activities under Find an activity. This is designed to link you to all the information you need to run any particular activity, and to give you new ideas of activities you could run. The factsheets 'Scout Led Activities Index' and 'Commercially Led Activities Index' also provide much of this information in factsheet format.