We managed to do the deserted loop today. Arriving at waterfall was okay but pretty steep down. Go up above the waterfall, then continue upstream until you see two orange ribbons on vertical branches by river, and go straight up the mountain until you find the next marker, crazy up on boars’ trail. We got lost because we found more markers going upstream after those two. Should have read review before. Be prepared and careful, very wild and essentially no trail up the ridge until you hit Aiea Loop again. Experience hikers only.

THIS TRAIL IS AWESOME! It has everything that you'd want for a "moderate" hike. There is fruit everywhere and the scenery is out of this world! Check out our video!

https://youtu.be/BubrdwWB_mo

If you are looking for adventure , this is a good trail! Quite easy until the waterfall, then get ready to look for only few signs on your way, pink signs can be anywhere, on trees, leaves, ground...half fun half annoying to find these signs! But after all , happy to have done it! Would not recommend with a child. My wife was inexperienced and did it bravely!!

Hike was pretty miserable overall. The decent down isn't bad but the "trail" too the waterfall is slippery and possible ankle tweakers. The falls were dry today so that was a bit anti climatic. The next half of the trail is rough, the accent is long and exhausting, great views but not well maintained. Very steep and could be a danger too younger or in experienced hikers.

Would not hike again.