The hiking conditions on Oahu change considerably depending on how much rain we got the week before. Sometimes the ground is solid and it’s just a nice walk. However, if there has been rain, the mud gets deep and sticky. Don’t wear shoes you care about.
This hike was difficult for me at sunrise because there was no one else around and I went off on the wrong trail a few times. I think that if you go for your first time, you should go later in the day when you can follow the crowds.
The bamboo forests along the way are spectacular, and a lot of the trail is along a stream, which is wonderful. It’s a lot of climbing over rocks and winding through trees, but it’s also pretty flat and chill compared to other hikes I have done. There’s not too much up and down.
The hike is long enough that I would recommend you bring a snack and about a half gallon of water. There are mosquitoes (since it’s along the water) so you should probably bring some bug spray. Other than that, you shouldn’t need much.
I should mention that the parking (across the road from the Pali Lookout) is separated from the trail by a fence and some signs about keeping out unless you’re hunting. But, there’s a break in the fence to the right of the parking lot (facing the fence from the parking.) Just go through there.
It’s not like the Stairway to Heaven where you’re likely to face a fine if you get caught doing it. The only issue is if you go onto the military land, which you would have to get WAY off the path and sneak through a second fence to do.
Likeke Falls is pretty cool, and I definitely recommend it.