And what exactly is nature ...

And what exactly is nature walking? It's any and every kind of walking you can do in the natural world. The activity encompasses strolling, striding, sauntering, stepping, treading, tramping, traipsing, traversing, rambling, roving, roaming, racewalking, hiking, meandering, wandering, wending, pacing, peregrinating, perambulating ... in natural surroundings.
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 Charlie Cook

Quotes from the same author

Not a day goes by that I don't click on RealClearPolitics at least once, the presidential poll charts, graphs and moving averages are great. If RCP didn't already exist, somebody would have to invent it.
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 Charlie Cook
Walking is simple and second nature for most of us. It's an everyday kind of activity, not something that's frequently the rage of fashion or touted for its sex appeal. Yet few physical pursuits in this life are ultimately as rewarding. It's a wonderfully satisfying way to spend an hour, and afternoon, a day, or longer.
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 Charlie Cook