Khammouane means Happy Gold. As the name suggests, this is among the best-kept secret with precious hidden charms in Laos. Khammouane is an ideal destination for ecotourism with the three most essential reserve area. The Nakai - Nam Theun National Biodiversity Conservation Area encircles an area of 352,200 ha of Nakai Plateau and the Annamite mountains. The Hin Nam No National Biodiversity Conservation Area spreads 86,229 ha, and the Phou Hin Poun National Biodiversity Conservation Area features 150,000 ha of limestone karts. The eco trip in Khammouane allows the guests to accommodate with the local ethnic community in their homestay, conquering the massive caves of Konglo and taking a boat tour on the magnificent Khun Kong Leng Lake.