Challenge O Paris E2 (2016-02-21)

Froze waiting for delayed start so first few controls were the warm up. Then sadly ran out of steam in latter parts. Main error at no.16 Had no understanding of how the buildiing is mapped but no excuse for running past it then stopped to work out what I was looking for. Finally decided to run around it and hope (was successfu and was what I should have done in the first place). Enjoyable course.