OK here is a real stupid question...and I think I know the answer.

If there is an existing in ground swimming pool that is kind of small, like
16 feet long which is just slightly more than two body lengths...can't
really swim, soak in it may be.

Is it crazy to think about extending it's length? Is it possible? Will it
be about the same cost as building a new one? or no?

Thanks in advance,

MC