The Falls Creek Gorge is one of those places that if you go at the right time and/or have the right clothing/gear, you get a nice experience. Maybe even some great photos, too!
The entire trek from parking lot to the potholes, then the mini waterfall, and then back the way you came to your car, is less than a mile. So, if you pack your car accordingly with a change of shoes or water shoes, you may not mind getting your feet wet if the water level is higher than when I went.
Know that once you climb down a short stairway, you will most likely have to cross a slightly sloped rock area where water flows over it. I wasn't worried about getting my shoes wet (it was only about 1/4 inch deep) but because of the possibility of slipping and taking a hard fall onto the rock and sliding into the creek. The creek wasn't deep either, but rock is a lot harder than my bones, so I was careful as I crossed the area to the stairs that lead sharply up to the rest of the trail.
I was fortunate that the water level was low and easily crossed to a spot where I could stand at creek level to view the potholes. The eddying current of the creek has worn a series of potholes in the river bed than make for a great audio experience hearing the water flow through them.
The trail is steep at points and is narrow most of the way as you can get views from above the potholes and the creek.
If you continue on the trail, it leads back to a mini waterfall that is only a couple feet high, but because of the setting and the sound, I found I was very pleased I went the extra distance to view it.
I understand that the experience can be completely different after a heavy rain or in the winter when ice covers much of the creek. My advice is to know your own skill level at handling flowing water and ice before you undertake this park when the conditions are more challenging.
Review #2843 read more