It flows south from its sources in the northeast of Kahurangi National Park , reaching Golden Bay 13 kilometres northwest of Takaka .
The Onekaka River is a river of the Tasman Region of New Zealand 's South Island .
Onekaka River flows south from Onekaka River 's sources in the northeast of Kahurangi National Park , reaching Golden Bay 13 kilometres northwest of Takaka .
The Onekaka River is a river of the Tasman Region of New Zealand 's South Island .