"Unnamed Ridge" is rocky and offers magnificent simultaneous views of Erskine Creek to both sides. There are about 3 points where you walk along the ridge for the view then cut back a 100ish metres and drop down a layer. None need ropes. You quickly arrive at Erskine Creek with an excellent swimming pool then there is an agreeable walk downstream towards Word Cave and the Nepean. There is another magnificent swimming hole along the way. The climb up the Nepean Lookout is a little bit bushy with a couple of scrambles, but straightforward enough.