There is a gallery of 33 pictures below. To view them on imgur, click here.
I found it easy to follow Google Maps to the Kerikeri Basin Lookout, and park in the car park at the end of Lake Road. A footbridge crosses the Kerikeri River to the Stone Store and Mission House.
The Mission House, 1822, is New Zealand’s oldest building. The Stone Store, 1836, is New Zealand’s oldest stone building. The Stone Store still sells many of the items it sold back in the 1800s, as well as some interesting gifts.
I found St. James Anglican Church to be very charming and photogenic. The website has links to some history of the church. Several older churches, no longer standing, were built on the site and nearby.
Back on the other side of the footbridge is the start of the Kerikeri River Track. A 3.5km walk (each way, not a loop track) leads first to a historic hyro-electric station station that started producing electricity in 1930 for 17 people in Kerikeri. Read more about it here. There is an interesting vertical panorama in the gallery below.