Nice one! When I was starting to learn how to swim in a public aquatic center, the lifeguard has given me advice not to swim with closed eyes because he said there were several incidences that had happened wherein both swimmers bumped heads with each other because one wasn't aware of the surroundings. Of course it is a public aqua center so no one owns the lane, one should give space for someone. I am also in to what Terry has been giving emphasis on "The Value of Being Observant", it is a good motivation to see the skies even though I practice the "one goggle in, one out" and seeing yourself move streamline to the water in fluid motion. So thank you guys for all these wonderful insights! Happy swimming!