Ключевые слова: asia, asian, batak, bataknese, beautiful, blue, caldera, countryside, crater, danau, forest, freshwater, global geopark, green, indonesia, indonesia landscape, indonesian, island, lake, lake toba, lakeside, landscape, medan, mountain, natural, nature, north, outdoor, reflection, rural, samosir, scenery, scenic, shore, sky, sumatara, sumatra, summer, toba, tourism, travel, trees, tropical, vacation, view, village, volcanic, volcano, water,