We had been coming down to Arkansas for several years before we ever heard about this waterfall and only then upon reading about it in a book. It's super-easy to get to, and very picturesque, and yet, it isn't a place that people talk about a lot.
Liles Falls is just off the road on the way to the Erbie Campground. As you are driving on the road to Erbie you pass the Koen Interpretive Trail, the Ponds Loop and a little picnic area (I'll talk about all of those at a later time) and at one point, cross a little stream and there is a parking area there on the right.
If you park your car there and then walk back out across the creek there is a very well-traveled trail that dips down into the woods from the opposite side of the creek. It isn't a maintained trail, but it's flat and easy to follow -- and the falls is only about a quarter of a mile of flat trail from the road.
Once you get to the waterfall, the scramble down to the bottom is a little challenging but can be done by most active individuals -- and when they get to the bottom, they'll be greeted by a wonderful, 41' tall cascading waterfall.
This waterfall is also easily accessible off of the Buffalo River Trail between Erbie and Ozark.
We came during the wet season, but it had been several days since it had rained and the falls was just a small little cascade. I've seen some wonderful photos of it on flickr and plan to come back after a good rain to see it in all its glory. Even with a small stream of water, it was still a beautiful place to sit and relax for a spell before heading back to the car.
Star Rating: 3 1/2 out of 5 (this may go up if I go on a really wet day)
Difficulty: Easy -- although the scramble to the bottom of the falls is a little tricky
Footwear: I recommend trail shoes -- but tennis shoes would be fine
Kids: Except for very young kids this should be easy enough. May be a bigger challenge for the elderly.
Trail Guide: Tim Ernst's Arkansas Waterfalls book