Walking in the countryside for pleasure or sport(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "hiking" in a sentence
"She ends it in hiking boots and a pair of bell-bottomed slacks emblazoned with the American flag."
"Disappearing on your wife to go hiking is not a Republican values or a liberal Democrat thing; and ducking an all-clad when you finally come home is not party specific either ..."
"Unfortunately, going AWOL on the job and leaving the country while telling your staff you are out hiking is absolutely grounds for being fired, for pretty much any position."