I have a question, how did you get AF if your favorite activities were meditation and swimming!? That seems like the healthiest combination ever. In fact, I did those two very things yesterday (I swam 1/2 of a mile, not hard for me no matter my health, I swam in college).
My favorite things to do are to go hiking, which I can't do anymore. I love to go on a hike with 3-4 of my friends to the top of a scenic mountainous area in Washington state and then camp there, maybe have a little wine/beer at the top and just talk about stupid stuff for hours into the night.
In the winter I just play video games/watch sports/workout/play sports like basketball. I play in a men's league waterpolo team in the summers.
But really, my favorite thing to do is go in social groups to beautiful places.