Make a key of symbols and words on the side of the map. Put 'control stickers' with a code number on each feature of the map. On the camp, students in pairs or as individuals are challenged by each other to complete the course and note the code numbers found. Make a Control Map of the area you are going to use. At each control centre have a card with a task the students must complete, eg count the number of branches on a tree, name the colours of the flowers etc.
Science Conduct a bush study, a stream study or a study of birds, animals and insects.