One year left!
As per the note in the geocache I will move the bitcoin if it is unclaimed by 2018, one year from today. I think I will continue to offer a small reward for finding and photographing the cache after 2018. As far as I know the paper wallet is still just sitting there. We can see that the money has not moved anyway.
I recently visited Iceland and having come across this post a while ago, I thought I would go and hunt for for the geocache before leaving. But it seems like it has disappeared!
See photographic proof below:
Disappointing! Beautiful country though, highly recommend a visit and thought that this was an interesting experiment