On a previous post, I said that I was trying to decide if I could risk a trip to New Zealand to visit my son. After all the positive replies, I decided to go for it. Well, I am just back and had an amazing time. My lovely sister, knowing that I didn't want to travel all that way on my own, said that she would come with me, so after spending time with my son in Wellington, we fitted in a trip to the South Island, and managed tours and glaciers and whale watching, so had a trip of a lifetime.
Thanks for all the advice, and to anyone else wavering on the sidelines, I would say "just jump in, we don't know what the future holds for us".