After I went to Iceland, I thought it would be a matter of time until the "secret" got out to Americans, particularly on the East Coast. I believe it is less time to fly from NY to Reykavik then to the west coast (SF/LA). I don't know the airfares, but Iceland would be a wonderful vacation for a family to be out in nature. Such a unique landscape, unlike anywhere else in the US.
I recall they did quite a bit of marketing maybe 10 years ago or so with cheap flights to Iceland to try and get some Americans to go there as opposed to the UK. Once there it is quite expensive, but wow what a wonderful experience. Golf, I have no idea, but I'm sure it would also be a memorable round. As you can read here, those who have gone love it.