Translation of inquietud

I understood that this was a real problem in this country and many foreigners came for sex tourism. Many bad stories had happened but my hosts were decent people. I could tell that right away.
The intolerance between them rose. The Dutch population feared assaults by their neighbors and thus kept away from personal contact with anybody who was not Dutch. Clearly this issue disappeared.
We walked by waterfalls and rivers, but the water was too cold to swimm in. The hike made us tired and we were in the valley, which meant that we had to climb up again. The climb was difficult.