The northern tip of the Far North will be cut off all weekend due to a washout on State Highway One.
The road is washed out between Whalers Rd and Lamb Rd, near Pukenui at about 3.50pm.
Pukenui is 35km north of Awanui, on the way to Cape Reinga.
NZ Transport Agency said the road will remain closed over the weekend.
"There is no alternative route. Motorists will not be able to travel north to Pukenui and on to Cape Reinga or south from there to Kaitaia. Motorists are advised to delay their journeys in the Far North."
The Transport Agency is working with Civil Defence, emergency services and local authorities to support people in the area who may be affected.
Facebook user Troy Denison posted a photo of the dramatic damage with people standing by the crevass in the road staring in disbelief.
Fishing competition Snapper Bonanza, which runs until Saturday on Ninety Mile Beach, posted a photo of the washout on their Facebook page, and told competitors to drive down the beach.
SH1 CAPE REINGA, WASHOUT - ROAD CLOSED - 4:15PM
— NZTA Akld & Nthlnd (@NZTAAkl) March 23, 2018
Due to a significant washout south of Pukenui in the Far North #SH1 is CLOSED with no alternative route available. Delay your journey: https://t.co/DTrmwMe20x ^TP pic.twitter.com/2ay5u3uWJw
Take your Radio, Podcasts and Music with you
