Swimming in Japan is very strange. In most public Japanese public swimming pools, half of the people walk up and down the pool instead of swimming. At the end of each hour, everyone has to get out for a rest.
I went swimming at a school swimming pool near my house. The staff seemed really pleased to have a non-Japanese customer. One of the lifeguards rushed up to me as I entered the pool, and asked where I was from. When I told him I was English, he got very excited and started talking about Mr David Beckham, a British footballer. I tried to explain that football was the opium of the people etc, but I'm not sure I was able to fully get my point across.