Visual, good when the rapid above the bridge is paddleable
The first rapid just above the road bridge doesn't really charecterise the rest of the run, which typically has more single drops with powerful hydraulics. The harder rapids are in the first kilometre, before easing to class III boulder gardens. At the flows necessary for this run to go, the water is brown and pushy, and you can hear boulders rolling along the river bed underneath your boat!
To get to the put-in; drive east from Reefton on SH7. The road crosses the Inangahue several times, stop at the bridge with an obvious class IV rapid immediately upstream of the bridge. Put in here.
The take-out is harder to find. Return towards Reefton for about 6km. On the left there is a grassy flat where the gradient of the river has obviously eased. It is worthwhile marking the take-out with something visible from the river.