The refuge of 11 is the highest hotel in the world. During WW2, in 1942 the Germans captured it and sent a patrol to the peak of Elbrus to put a swastika flag. The soviets, sent a NKVD patrol to capture the hotel, but failed. I thing it would be a good map for the grappling hooks. More info:
https://en.wikipedia.org/wiki/Mount_Elbrus