The Cyclopedia of New Zealand [Taranaki, Hawke's Bay & Wellington Provincial Districts]
Rivers
Rivers.
Hawke's Bay is, on the whole, a well watered district. The Porongahua rises in the Puketoi range, and reaches the sea north of Cape Turnagain; the Tutaekuri discharges itself into Napier Harbour; Ngaruroro, south of Napier, flows into Hawke's Bay—as do the Tukituki, entering the sea near the Kidnappers, the Mahaka, which rises in the Kaweka range, and runs round the back of the Mangaruru hills, and the Wairoa, which runs due south from Lake Waikare-Moana. The Turanganui, with a tidal estuary, serves as a harbour for Gisborne, and the Wairoa is also navigable for a short distance, for vessels of light draught.