A mate and I tried to find the rap point to Arthur's Circus - Mt Wellington, and we failed!

The guide provides the details provided below, however they proved insufficient for our abilities :(

After driving to the top of the mountain, then walking down the track to the top of The Columns, we spotted a massive cairn located south, presumably above Central Buttress. We made our way to this cairn, however once there we were unable to find any rap point. From my marvellous vague description, can anyone shed light on where we were supposed to go from there? Had we perhaps found the "prominent cairn" mentioned in the guide? We were looking for some rap rings, however is one supposed to build an anchor at this point? What route is the big cairn above?

Much thanks to anyone who can help! :)

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taken from thesarvo...

Arthur's Circus

First of all, however, high on the L at the top of Pooch Gully, is a large reddish wall, Arthurs Circus, with a prominent inverted L-shaped crack. The routes, Line Tamer to High Wire, are probably best located from the top by following the cliff line round to south of the Bert's Fear top abseil (GPS MTW170. Note this abseil is below the cliff tops so don’t go down to it), then continuing easily on past Pooch Gully, still along the cliff tops, and descend to the top of the Circus. A prominent cairn can be seen at the top. (built May 2008). From here, abseil in. Alternatively, scrub bash up Pooch Gully... ouch. Positioned at the top of the cliffs Arthurs Circus catches the sun and is a good location for the cooler months. It is only 15 minutes walk down from the top of the mountain.