Coldwater Stream Campsite is a basic, remote DOC-managed campsite situated in the Upper Wairau River area of the Nelson/Tasman region, South Island.

Access is via the Wairau-Hanmer Springs Hydro Road (Rainbow Road), a gravel route with stream fords that requires a high-clearance 4WD vehicle; the road is generally open from Boxing Day through Easter Monday, with access outside those dates requiring contact with Star Holdings Ltd.

Road access fees apply, though camping itself is free. The campsite serves as a popular base for 4WD touring, trout fishing, and kayaking on the river. Facilities are basic, and there is no cellphone reception.

Note that Coldwater Stream Campsite is a separate location from Coldwater Hut. For information, contact the Nelson Lakes National Park Visitor Centre in St Arnaud.