Horgo is the famous dormant volcano crater in Arkhangai province, its eruption a created a beautiful lake Terkh and the river cliff of Chuluut. Terkh is known for its rich birdlife including the common heron, great white egret, whooper swans, shelduck and gulls. An hour boat trip would bring travelers close to the bird island. A walk up to the crater present stunning scenery of the surrounding forest, mountains, the lake and lava bubbles. Locals wait for tourists for the tale of the lake and homemade dumplings. The lake is relatively shallow, 50 feet deep, and warms up in the afternoon for swimming. The beach is covered in pebbles but the ger camps happily provide sunbathing seats.