20 Trailblazers Leading the Way in 5 treasures
https://www.goodreads.com/topic/show/19985521-5-things-everyone-gets-wrong-about-5-treasures
Entire world Tourism Organization (W.T.O) has defined ecotourism as, "Tourism that requires traveling to somewhat undisturbed all-natural parts with specified object of learning, admiring & enjoying the landscapes