Welcome Charlie! Tandem bikes are always sweet in my book, it is a great excuse to get your spouse to tag along!
Cycling is definitely on my lists to do more of when I finally get to hang up the work duds for good. In addition to enjoyment and happiness, it's also good for your health!
Enjoy your stay!

P.S. I have a good feeling your wife is going to build up an endurance and pretty soon'll find a single rider bike less challenging.