Any precision shooting activity like archery, sniper, handgun practice.

Scuba diving, deep sea diving - I'd be terrified, but I really want to do it at some point in my life. Also: swimming with whales

Wouldn't mind taking a cooking class or something like it. I'm already a fairly good cook but it'd be neat to get a more professional angle on it.

Instruments. All of them. Also maybe choir singing.

Dancing lessons! I'm pretty sure I'm too clumsy to get any good at it, but it'd be fun to give it a shot either way.

Skydiving! Powered paragliding. Rafting.