Swimming?

So as many know I've been toying with the idea of trying another sport to keep me busy over the non-cycling/non-baseball season. I've been brainstorming and may have come up with one. While searching the web, I found a club based out of Ann Arbor for swimming. Since I enjoy the water, I fugure that would be a good sport to try. I spoke to my dad about this and he thinks I should relax for the winter. I don't want to. I may or may not go forward with this. I'm not sure yet.