It was a very cold night but Tom, our guide, spoke eloquently and made the tour interesting for both adults and French teens.
I think on the whole the teens were more engaged than the adults. They loved the grisly tales of headless men wandering on the streets and brushes of cold air in the halls of colleges at midnight.
It was just the right length both in distance and duration. Magically we did a loop and finished at the CS Lewis lamp post and door in St Mary's passage.