Brief bathing scenes show the top of girls' breasts. Completely nonsexual/no explicit detail.

In the second season, fish is shown being chopped up as mild blood is shown. This isn't graphic considering it's how they are prepared in real life.

Infrequent use of mild coarse language ('hell', 'ass', 'crap', 'suck') in the official subtitles.

Little to no swearing in the English dub, about the same as sub

An adult woman who is a teacher and a heavy drinker is a recurring character. She goes camping with the teenage main characters once and is intoxicated for most of the time.

None.