If I’d had regular access to a pool, or a rowing machine, probably that’s how I’d have done the English Channel virtual challenge.
If I can, I think I’ll try to pedal my way down Route 66.

I figured out how many times a day I would have to go up (and down) my stairs to equal Mt Fuji. (It’s a lot.) Seems more doable and less likely to lead to a tumble down the stairs, via a stair climber machine or somesuch.
This could get out of control in no time at all.
I think I’ve gone mission happy.
But since this activity actually also makes me happy-happy I’m going to roll with it.