Answer:
It is a complex sentence.
Explanation:
It contains one independent clause and a subordinate clause. Therefore it is a complex sentence
Margaret Frink described crossing the tumultuous river very exciting because it was a unique experience, with some difficulties they had to face on their way, but when they finally arrived she felt relieved and safe. She says that "the danger in crossing consisted of the continuous shifting of the sandy bed".
When determining the setting of a story, you should look for: the characters environment, the time period, and where the story takes place.
Maybe you need to put a comma between home and I?