Port Hardy Road is a gravel road running through Rangitoto ki te Tonga / D'Urville Island, off the northern tip of the Marlborough Sounds region (Tasman). It serves as a useful link, connecting various routes and tracks across the island, making it a handy spine for piecing together a wider trip on D'Urville.

The road winds through remote island country, offering a quiet, off-the-beaten-track experience well away from the mainland's busier trails. With the island's isolated setting, expect a mix of coastal and rural scenery as you make your way between destinations.

Best suited as a connector route rather than a destination in itself. As with any island travel, plan your access and crossings ahead of time, and come prepared for a self-sufficient adventure in this peaceful corner of the upper South Island.