A tour boat motors across the flooded plain in Periyar National Park.The Periyar National Park and Tiger Reserve is situated within the confines of the Western Ghats in the southern Indian state of Kerala, it spreads over 350 sq km. It is one of the 18 reserves under Project Tiger. Periyar is a national park as well as a protected tiger reserve, whose total area is about 778 km sq, and is located 1200 to 1800 m above sea level. The terrain ranges from hilly to flat grassland areas at the edges of the man made lake which is a major tourist attraction. Marshy grasslands, rolling and steep hills are also present here. The vegetation is of moist deciduous type.