Translation of roedor

Thanks a lot. Today and tomorrow are holidays in Switzerland, but I'll do it Tuesday first thing in the morning...please have a look at it and confirm. Where do you want me to place a reference?
The climb was much exhausting than I had presumed. I had forgotten that we were at high altitude where there is less oxygen and that every step required double effort. It was a great exercise.
We spent the entire day doing nothing, just waiting for the night train which would take us into the northern mountain area of Vietnam, close to the Chinese border. The train left at around ten.