My wife and I will be traveling down to New Zealand in February. She doesn't ride a bike and I don't expect to have any biking opportunities while we are together, probably the entire month. However, I can travel there before or stay after she leaves for biking around. That would mean either January or March.
I know that January is the height of summer and vacations, so things can be crowded. Is this a problem the entire month? Or, is it only during Christmas? Are there places on the South Island (likely the only one I would ride on) that aren't crowded but good for bike touring?
What about March? Would it be better to do my biking there after my wife leaves at the end of February?