Thank you for posting these pics David.
I visited the Rocher in 1981 with my daughter & dozen Swiss friends, with our hang gliders.
My friend and I flew from the side of the large mast, above the hotel and landed near Montreux.
Our Swiss friends said 'mad English' and wouldn't climb to the mast. But they were very jealous when the wind turned and they had to go back down on the train. Your pics bring back fabulous memories. Best regards, Hugh
P.S Railmon on YouTube.