If you have the chance to visit the Blue Mountains while in the Sydney area, I would suggest taking the Blue Mountains Explorer Bus for most of your explorations in the area. The bus stops at most of the interesting scenic sites in the park. You can essentially hit a number of different places all with the setup.
One of the stops that isn’t as busy is the stop leading to Gordon Falls, though that may be because I went later in the day. The hike is very short, and you get an interesting view of a tall, but narrow, falls. They aren’t nearly as impressive as Wentworth Falls or Katoomba Falls, but you should still check it out because it’s so easy to visit…and the scenery is stunning. The falls you see are likely to be highly dependent on recent rainfall.
1) You can access the falls from either Katoomba or Leura. If you’re driving, Leura would be the better choice, as then it’s a straight drive south on Leura Mall to Gordon Rd. You would then veer right on Lone Pine Ave to the parking area at the end.
2) If you’re taking the Blue Mountain Explorer Bus, you’ll get off at Stop #18. This will be helpful even if your driving, as you can look for the sign.
3) From the parking area, follow the short trail to the falls. I didn’t explore whether hiking further on the trail led to better views since I had limited time.
Where in the World is Gordon Falls?: map