Whilst on a family holiday I hired a climbing guide from a shop in Thredbo a few years ago in summer. He set up top ropes for me so I can’t remember if the routes we did were bolted or not. The first tor we climbed at was directly behind the Eagles Nest restaurant (I think its still called that) at the top of the lift at Thredbo. Good face and crack climbing (18?). There was also a fun birth canal style chimney. These were definitely well used routes. After this we walked up the track to Kosci about a k and headed left across the vegetation to an outstanding tor and top roped a couple of known routes there as well (a bit harder). I can’t remember any names but thought it was all well worth the effort.