If it were just me myself and I that I had to worry about, I'd be in a cabin in the mountains where your stuck til spring once the snow begins to fall. There's just something super peaceful and relaxing about sitting in front of fire and just watching it burn; no music, no TV, no sounds other than the fire, and nothing to look at except what you can see. In fact, every time I light a fire in the fireplace, I take the time to spend at least 15-20 minutes of just sitting in silence. Back to the cabin, I imagine I'd read a lot of books and get really smart in the process.
With my wife, it'd be on a sail boat sailing the carribean, the Gulf and down to Central and South America. That's our retirement plan.