During my short stint in W' gong I poked around here and also to the north and also possibly south of the blow hole - (but my memory is a bit foggy - it was in the late eighties). The other areas that I looked at had reasonable lines above about ten feet, but I remember that the starts were horrible. The basalt was overlying a band of lumpy grey smooth choss at ground level that was undercut because it was really soft. Also climbed the blowhole in a rising traverse - heinously sharp rock on the fingers - really hateful.