Interactive tour of the Seyne-les-Alpes Citadel
17 - South Casemates

This staircase leads to the casemates which are added to the fortress under Louis XVIII in order to strengthen its defense system.
They consist of a subterranean passage that runs through the entire width of the fortress and opens at both ends on two small vaulted rooms.
The south wall of the underground passage is pierced, every two meters approximately, of loopholes surmounted by chimneys which served to evacuate the abundant smoke that emitted the powder during exchanges of shots.
The walls of each of the two vaulted rooms are pierced with three loopholes facing each other.
The southern casemates thus allow to put into practice the system of "cross shot" dear to Vauban.
The southern casemates are only accessible for guided tours