The township of Dargaville was established by Irish businessman Joseph McMullen Dargaville in the 1870s He purchased the 80ha Tūnatahi block of land from local Ngapuhi Chief Parore Te Āwhā and others. His vision was to create a planned community, during the heyday of kauri felling and gum digging. It was largely settled by Dalamatian immigrants, whose descendants still live there today. At one point it had the largest population in New Zealand. Dairy farming is now the main local industry; the district also produces around two thirds of New Zealand’s kumara (sweet potato) crop. Population is around 5,250.

Things to do include  

BUTTER BARQUES AND GUM TRAIL -   

Explore the history of the river and early Dargaville by following the Butter Barques and Gum Trail.  The trail is designed as a loop, starting at the Gumdigger Statue in Lower Hokianga Road, travelling along Logan Street to the Dargaville Museum and returning to Lower Hokianga Road via River Road.  Historic site markers along the trail give you an insight into Dargaville's history with a short explanation and a photograph.  Experience as much or as little as you like by joining and leaving the trail at any point.  While at Pou Tu te Rangi Park, visit the Dargaville Museum and the Kaipara Vintage Machinery Club.

A great way to get your bearings and learn the local history.

The Kauri Museum would be my next stop due to the diverse range of things to see and do. 

They have on display the worlds smallest revolver along with the worlds largest slab of Kauri. The gum collection itself is over 5.000 pieces.

I won't tell you more and ruin your visit. Go look for yourself and enjoy this truly unique facility.