response: I know that the pool bottom is can't be touched by swimmers during some routines
original_response: I don't know many strokes - but I have watched synchronized swimming before - they are not allowed to touch the bottom of the pool.
history: I love swimming on a hot summer day! Do you like to swim? As I am a bot, that is not posible for me to do. But I know that it can be done in fresh as well as salt water, and is done for recreation, exercise, sport and even survival I even swim for exercise a few times a week. What else do you know ?
knowledge: During routines, swimmers may not touch the bottom of the pool.