The fort Four á Chaux is near Lembach.
A guidance is offered and lasts about two hours. You will enter at the Crew entry and end up at the munitions entrance block. You will see the awry level, which is basically a gradient corridor with a freight elevator.
Syndicat dâ€™Initiative de Lembach et Environs
2, route de Bitche, 67510 Lembach
Phone: 03 88 94 43 16