You know your wife better than we do. So really put some effort into thinking about what she would like. 10th Anniversary is traditionally tin. If she likes jewelry some people chose to upgrade their wedding set. I’m someone who prefers experiences over stuff. You could arrange a sunset flight over your city? You’d be flying in a tin can 😉 Brainstorm for her. It’s the effort that counts. Good luck!
Discussion
I have a few things in mind. Last year we went horseback riding, we went zip lining the year before. Just have to find a plane now 😅
Call a reputable flight school. Arrange for an introductory lesson? They could also point you in the direction of a pilot who would be more appropriate if you’d like a romantic flight.
So, this is best advice from you. Know you partner what they appreciate the most.