London: A French couple allegedly having sex at a historic castle somehow fell from a 40-foot height and into a moat, where they both died.

The couple was paying a visit to the Vauban Fort in the Chausey Archipelago where they eventually decided to have sex. Authorities say they believe the man and woman — both in their 30s — decided to have sex in part of the castle that is roughly four storeys off the ground.