Mid Okahu Road Campsite sits within Whirinaki Te Pua-a-Tāne Conservation Park, set on grass terraces alongside Okahu Stream. Formerly known as Grader Camp, it is the larger of two DOC campsites on Okahu Road, located roughly 7 km from the road-end campsite.

Access is via Okahu Road, a gravel track reached by turning off Ruatahuna Road at Ngaputahi. The surrounding forest was extensively logged for kahikatea in the past, and podocarps are now regenerating throughout the area.

The campsite is more sheltered than the road-end site and offers good picnicking and walking in the forest. Basic facilities include a long-drop toilet and stream water. The campsite is free to use and managed by the Department of Conservation.