https://www.youtube.com/watch?v=BEYYIWdaYyEI'm now back from the trip, and this is what I learned:
It's a great spot, well worth a visit. It gives you a bush experience on the island, and you can easily get a lift into town from the airfield. Very friendly people. You can camp and they have nice facilities there.
The runway is all grassed over, it's not anywhere near as bad as expected. Some bumps but no worse than anywhere else with a grass runway in the area. You can't get bogged unless you go right off the runway, and it's clearly marked with cones, and into areas where you wouldn't even drive let alone take an airplane. The photo's on the club website are very old and show the runway in much worse condition than it actually is.
It's very scenic going there, I was impressed.
Keep the speed up, approach a little faster than usual incase you hit windsheer, but I didn't experience any. We had wind of 15 to 20 kts and I did hit sink but nothing bad. In the video you can see me winding on the power right at the end! Taking off on 15, the ground comes up to meet you, I turned left before I reached my usual 500ft. But then stay away from the radar tower on the nearby hill, apparantly we are meant to be 1500m from it.
All up it was a great three days away.
Here is the landing. I find I land well on grass as I always get the nose up properly!
This is the scenery on the way there:
This is the runway:
Pulling the plane to the hangar:
The clubhouse: