What hobbies can I cultivate after work?

One of my hobbies is swimming in the morning. This is my hobby. I have persisted for more than three years. When I get up tomorrow morning, the first thing to do is to go swimming in the swimming pool near my home. Every time I swim there for dozens of minutes, I feel very comfortable. One day I will feel relaxed at work and my weight will reach the standard. I have a good figure, too. This is why I learn to swim and insist on swimming. I will stick to my hobby. I think the happiest thing I have ever done is to go swimming.