I’d seen pictures of Clarke Gorge on the internet, and this alone convinced me I should visit the less trendy northern end of Kosciuszko National Park (less trendy because of the generally lower elevation). It’s a very narrow gorge lined by sheer sided cliffs, and the walk through it to Cave Creek Falls must be one of the best in the park. There were brumbies (wild horses) galore in the area, and although they are non-natives, they are nevertheless charming animals that are generally quite comfortable with humans.
You can also do the very attractive Nichols Gorge Track, a circuit which branches off this track near the start, and returns back to the camp ground where you park your car. Both together made for a great day’s walking.
It’s only 5km return but you have to cross the creek ten times and won’t be able to avoid wet feet, so wear either walking sandals or woollen socks. We kept taking our shoes off and it was a pain in more ways than one (both figuratively and literally, on the soles of our feet). Make sure you go all the way to Cave Creek Falls because they are very nice; (it’s a very short but steep descent to get to these). Info on the NPWS website, and in this NPWS brochure.