Translation of vergebens

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?
We had time to walk around the waterfall but refrained from entering the little lake at the bottom. My fellow tourtakers were quiet nice and we spend a while just sitting in the grass near the water.
Do be honest, I like the page as well. My suggestion is to create a page similar to the current one, but without the advanced course and without the hard copy order option which is not our thing.