I would spend years showing my boys every last inch of the planet, so that they could say they'd seen it, and so that I could hand-pick my perfect sunny corner to retire in when the time came. Then I'd pull up my comfy chair in the garden, do crosswords, drink gin, and eat fresh pineapple, marmite on toast and plain chocolate every day, surrounded by a multitude of grandchildren.
And I would build a tree-house, complete with swimming pool and trampoline. (In my dream world, this would of course be possible...)
There! That's all within reach.... isn't it?! :)