Raetihi, a small town in the centre of New Zealand's North Island, is located at the junction of State Highways 4 and 49 in the Manawatū-…Raetihi, a small town in the centre of New Zealand's North Island, is located at the junction of State Highways 4 and 49 in the Manawatū-Whanganui region. It lies in a valley between Tongariro and Whanganui National Parks, 11 kilometres west of Ohakune's ski fields.