We were just doing some work on planning sessions for Primary Schools and were looking for how Orienteering fitted into the National Curriculum. The following section is from the page for PE.
Outdoor and adventurous activities
11. Pupils should be taught to:
a. take part in outdoor activity challenges, including following trails, in familiar, unfamiliar and changing environments
b. use a range of orienteering and problem-solving skills
c. work with others to meet the challenges.