Cambodia is located in south-east Asia bordering the Gulf of Thailand, between Thailand and Vietnam. It occupies a total area of 181,040 sq km of which 176,520 sq km is on land. The country has a 2,572 km long land boundary and 443 km of coastline. Cambodia has a tropical climate – rainy, monsoon season from May to October and dry season from December to March. The terrain is mostly low, flat plains with mountains in the south-west and north. Natural resources include timber, gemstones, manganese, phosphates and hydropower potential.