1920x1080 HD I love challenging myself; especially because I am a fantastic swimmer! So I bought one of those nose plugs so I could test my breath holding skills even better!! I submerge myself over and over trying to hold my breath longer and longer each time. I love that I can hold my breath underwater for so long and trying to stay under longer and longer shows my strength. I get up to 50 seconds underwater successfully!! I am so impressed with myself for being able to stay underwater that long.