I never really heard of pickelball, it might be something I'll have to look into.
I LOL'd at the dancing, I think my wife would be upset if I signed up for dancing without her!
Tennis I would love to try, but the serve would be hell on my shoulder.
I did look online to see if any Parkour groups were around, none in my city, at least none with any online presence.
Great call on the cross country skiing, we do have a toddler, he might be able to do a bit of skiing by next winter, or maybe we could find something to haul him around in.
I've done a fair amount of golf in the past, it's not great for the shoulder, I find it too time consuming, and pricey.
Also going to look into the bike club thing as well.
So many great ideas!