The document describes the author's favorite hobby of swimming. They love swimming so much that they forget everything else when in the water. They usually swim at a competition pool where they wear a swimsuit, slippers, towel, and cap, but elsewhere can wear a bikini or shorts. Their favorite strokes are crawl and butterfly, and they started swimming at age six in a river. Being in the water makes them feel like they are in a different world where they can do anything.