Khongoriin Els, also known as the Singing Sands, is a stunning expanse of massive sand dunes stretching over 180 km in southern Mongolia's Gobi Desert. The dunes are accessible, though reaching the area typically requires a 4x4 vehicle due to the remote desert location. While solo travel is possible for experienced desert travelers, guided tours are highly recommended for logistical support, navigation, and safety. Camel trekking and sandboarding are popular activities. The best time to visit is during the shoulder seasons (late spring or early autumn) to avoid extreme temperatures; summer can be scorching, and winter is bitterly cold. Costs can vary significantly depending on the tour operator and duration, but expect to spend several hundred dollars for a multi-day excursion. A typical visit to the dunes themselves lasts a full day, including travel to and from a nearby ger camp or town.