Not far from the commencement of the easterly bend the Papamoa hills come down to the flat land, and within a mile or so to the east was situated Te Tumu pa built on the flat, not on a hill as Maori pas usually are, and which was fortified with palisades and ditches.
The Tumu pa belonged to Ngaiterangi – Waharoa’s ally – and was situated on the left bank of the Kaituna river, about two miles from Maketu, at the place where the river, descending from the interior, flows to within about one hundred yards of the sea, and then, by a sudden freak of nature turns sharply off to the eastward, from whence it pursues a course parallel to the coastline, until it reaches Maketu.