Discover the cool shores of Lake Toba, Jungle Treks Orangutan in Bukit Lawang, Berastagi Village, Swim with sharks and turtles in the coral garden of Pulau Weh ( Weh Island ) an underwater paradise, and verdant countryside around Bukit Tinggi, where the matrilineal Minangkabau build soaring roofed houses and the women told the men what to do.