Translation of Salzwasser

Some of the disadvantages are the coldness, darkness and the fact that the days are a lot shorter then as in the summer. First let me tell you what I do not like about the winter. It is the following.
But we need to asked ourselves why we actually are built in such a way that we so easily dislike others and build stereotypes. What leads to such behavior even in well educated individuals?
Swimming in the open water was refreshing and fun and some of us jumped of the roof of the boat into the deep waters. After another snack break the four of us were invited for a Kayak excursion.