Lake Manyara National Park delivered its name from a plant called Euphorbia tirucalli, known as Emanyara in Maasai language. The Maasai are using this plant toprotect their bomas (hedge).
The Park was gazetted as a National park in 1960 and was declared as Man and Biosphere Reserve in 1981. The park has an area of 648.7 km2 (402 sq miles) of which 262.7 km2 (163 sq miles) is covered by the lake and 386 km2 (240 sq miles) is dry land.The rainfall pattern of the park is bi-modal with short rains starting from November to December and long rains from February to May,the dry season is from late June to October, the annual mean temperature is 26.50C, average temperature 11.340C and relative humidity range from 45%-85%
.Located in the northern part of Tanzania, Lake Manyara National Park is 126 kilometres west of Arusha Town.