The age range here is great, I think there are more than a couple older than you - I sit nicely in the middle (although the wrong side).
There are meets organised but to do it properly takes a lot of effort. Occasionally there are smaller gatherings and I think Gimpy117 was talking very recently about a such a meet around Chicago (??? I think???) in the coming months.
There are a few U-boats around the world, the best examples, I think, are at Chicago and Laboe (Germany).
I'm envious of your trip to Iceland, but not for your reason for going.
Have fun,
Herr-B