Top Valley Road is a remote gravel route off Northbank Road near Blenheim, leading deep into the foothills of Mount Richmond Forest Park. Winding through farmland and regenerating bush, it follows the course of Top Valley Stream, with glimpses of rugged ridgelines and native forest. The road can be rough, narrow, and muddy in places, especially after rain, and is best suited to 4WDs. It’s a quiet, scenic drive into classic Marlborough backcountry, with occasional views across the Wairau Valley to the Kaikōura Ranges.