I really like podcasts and eating large dinners and then walking or bicycling after that, so I'll spend spend 3 or 4 hours a day learning something from a podcast and idly burning off all the great food I ate!
If you like walking games, the only other one I've really enjoyed is called "the walk", and it's sort of a serialized radio show, and every 10 miles or so you walk you'll unlock another chapter so you can hear the next part of the story.
it's a pretty cool story and very professionally done with a bunch of different voice actors.