The Waiohine River is a river of the Wellington Region

Wellington Region

The Wellington region of New Zealand occupies the southern end of the North Island.-Governance:The official Wellington Region, as administered by the Wellington Regional Council covers the conurbation around the capital city, Wellington, and the cities of Lower Hutt, Porirua, and Upper Hutt, each...

 of New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

's North Island

North Island

The North Island is one of the two main islands of New Zealand, separated from the much less populous South Island by Cook Strait. The island is in area, making it the world's 14th-largest island...

. It flows generally south from its origins in the Tararua Range

Tararua Range

The Tararua Range is one of several mountain ranges in the North Island of New Zealand which form a ridge running parallel with the east coast of the island between East Cape and Wellington....

 southeast of Levin

Levin, New Zealand

Levin is a town in the Manawatu-Wanganui region of New Zealand, and is the largest town in the Horowhenua district. It is 90 kilometres north of Wellington, 50 kilometres south of Palmerston North, and two kilometres to the east of Lake Horowhenua....

, turning southeast once it reaches the plains to the north of Lake Wairarapa

Lake Wairarapa

Lake Wairarapa is a lake at the southern end of the North Island of New Zealand, 50 kilometers east of Wellington. The lake covers an area of 78 km², and is the third largest in the North Island, fractionally smaller than Lake Rotorua...

. From here, the river flows through many channels and irrigation features, with some of its waters reaching the lake but most flowing into the Ruamahanga River

Ruamahanga River

The Ruamahanga River runs through the southeastern North Island of New Zealand.The river's headwaters are in the Tararua Ranges northwest of Masterton. From there it runs firstly south and then southwest for 130 kilometers before emptying into the Cook Strait. The towns of Masterton and...

 southeast of Greytown

Greytown

Greytown may refer to one of several places:*Greytown, New Zealand, a town in the southern North Island's Wairarapa region*Greytown, Nicaragua, the capital city of the municipality of San Juan de Nicaragua*Greytown, KwaZulu-Natal, a town in South Africa...

.