I'm not sure. It depends on the specific work. Some stories labeled as 'Swimmer' might be based on real events, while others could be purely fictional.
Well, to determine if it's a true story, you'd need to look at the author's notes or research about the origins of the story. Chances are it could be a fictional tale crafted to engage the readers.
I'm not sure. It depends on various factors like the source and the author's intention. Sometimes stories are based on real events but have fictional elements added.
The swimmer is definitely a central character. There might also be other characters like his friends or family members who either support or oppose his swimming journey. For example, there could be a coach - like figure who gives him advice on his swimming, or a family member who is worried about his obsessive swimming behavior. Without reading the novel thoroughly, it's hard to name all the main characters precisely.
It could be about a person who swims at night. Maybe it's a story of adventure as the swimmer encounters different things in the dark waters, like mysterious sea creatures or hidden underwater landscapes.