Mountain biking. It was fun, but I didn't love it enough to learn the technical stuff, and I hated having to drive to rides.

Sewing. My machine and related gear is in storage at my mom's. Just can't take everything to Belize, and wouldn't have the space for it in our 1BR condo there.

Gardening. When we sold our house on 11 acres in 2010 and moved to an apartment without a balcony, that went by the wayside. Now I enjoy seeing other people's beautiful flowers as I walk/bike by, and buying veggies at the farmer's market without all the work.

Kayaking. This is one I regret. We sold the kayaks when we moved to the apartment. Now we want kayaks again in Belize, so will probably be buying some, though with the much warmer water there and inability to store them inside to guard against theft, we'll likely buy different types (inexpensive sit on tops, instead of the pricier touring models we had before).

Soon:

Road cycling. This one will be hard, but where we'll be living is all sand (roads and beach) and cobblestone streets. It's flat as a pancake and a seaside environment (harsh on bikes, gears, etc.), so wouldn't work to take our road bikes. We have shipped aluminum beach cruisers down and will enjoy riding those, but the Bike Fridays will be stored at my mom's house for trips back and/or for when/if we move back to the US one day.

Interesting thread!