The Ho Oya, which begins on the southern slope of Muwan Pola mountain, forms into Mawanella Ella, located in the Lunuwatta village - 35 km from Nuwara Eliya towards Udapussellawa and another 13 km towards the Napola Gap. According to folklore, ancient King Manawamma had hidden a treasure in the cave behind the Mawanella falls, the waters of which flow into the Mahaweli River.
that the waterfall was created by the hermit-king Manawa (676 - 711 AD), who dammed the Ho Oya. So it was that the fall gained the name Manawela, which means "Waterway of Manawa". It is said King Manawa undertook this task to protect his treasure, which he hid in the rock face of the falls, behind the veil of water. In the roar of the falling water, it is believed, can be heard the whisper nidhanaya mahi tiyanawa, "the treasure lies hidden".

There is a mountain of Sri Lanka called Striee Pura (Queens paradise) is situated at Upa-Paranagama electorate of Badulla district. This mountain is very ancient one because 10th or 11th century there was a king called Walagamba prepared long tunnels for secret things. And also king ManaBharana is created beautiful stone buckets to queens and following pictures shows about more. Today also we can see or we can through there. When we though this or when we travel Lunuwattha place we can face Mana waterfalls. It is 67 feet high.

There is paddy field called Manawela is situated near Mana Striee Pura mountain. In ancient time it was big paddy field although now farmers cultivate in small area. Water come to Mana water fall from Hal Oya (Rice river). We can identify from a inscription, stone of there about people had been using this fields lot all the king eras.