Translation of ganglion in German

Then we did a boat trip which started somewhere in the delta and ended somewhere else in the delta. Each couple received a boat and an elderly lady had to row. I did not feel comfortable with that.
The books had cost only two or three dollars, cheap even for second hand books and after buying them I discovered that these were actually copied books and not used books. It was too late.
At around 6pm. we were back at the Chilean border and we were happy to change cars (to the mini bus again) and seeing a paved road. It took us another hour to get back to our hotel.