There’s only one part of the National Cycle Trail network north of Auckland, the Twin Coast Cycle Trail. As the name suggests, it runs from one coast to the other, from the Bay of Islands to the Hokianga Harbour.
Unfortunately it has taken a long time to get this trail constructed. Sections of it are open, other parts are due for completion this year, but the middle section has no planned construction date. Most of the trail follows an old railway line, so it should be easy to do, but maybe some key sections were sold off. Disappointing.
But anyway, some sections are open, and we were able to make it an afternoon ride of it. We parked at Okaihau, rode to Kaikohe, had a snack then rode back to Kaikohe.
There’s also longer loop off the side of the track, 5km of tight twisty single track through the forest. Recommended for a diversion if you’re feeling like something more. Be warned though, after making easy miles along the rail trail, the forest is a lot slower going. Allow the time, food & water if you’re doing that diversion. It’s well sign-posted, and puts you back on the trail a few hundred metres from where you started.