I think swimming seems so relaxing and enjoyable. I'm not good at it though.
i really love swimming in the ocean!
It's funny how locomotion is achieved through the coordinated movements of the limbs.
i've never thought of it this way :) I wonder if swimming burns more calories than running
It is one of the top recreational activities and in some countries lessons are mandatory in school curriculums. 
how cool is that! Do you know in what schools swimming lessons are mandatory?
local, national, and international competitions, including every modern Summer Olympics.
Science.
Swimming relies on the nearly neutral buoyancy of the human body. On average, the body has a relative density of 0.98 compared to water, which causes the body to float. However, buoyancy varies on the basis of body composition, lung inflation, and the salinity of the water. Higher levels of body fat and saltier water both lower the relative density of the body and increase its buoyancy.
Since the human body is
those other really good guys play the fancy stuff!" Stone then asked Wallis about the importance of this aspect of playing in the current musical climate, with so many drum clinics taking place. Wallis stated, "It's a very precarious subject really...Not for me. It doesn't work for me, 'cause I've never enjoyed that aspect of drumming at all. But, I really marvel in it and I wonder in it and I watch it myself and think, "wow!". I don't