Funny tidbits: It is hard to play social tennis after being an instructor. I caught myself giving people pointers because that is just the teacher in me... oops! They probably didn't appreciate it, but once I told some people I used to teach, they said... oh, it makes sense now! Also, before coming to Switzerland, I had never, ever, paid to play tennis... usually, people paid me to play with them. But I had no choice, if I wanted to play, I had to pay... around $40! It was almost $500 for the coordinator to rent 3 courts for 3 hours.
The surface was ... believe it or not... carpet.
I had never even heard of playing tennis on carpet. It had a similar feel to playing on grass because the ball skids easily. It was really hard to return a fast ball with a lot of spin. I wasn't used to it, so I felt like an amateur when I was returning a fast serve. I somehow misjudged the ball and framed it a couple times... so embarrassing!
Here is a closer look at the carpet...