When researching things to do during my month long stay on Oahu, hiking to Monoa Falls was near the top. Getting there was an adventure. I rented a Biki Bike and biked three miles to a local bus that drops you a mile from the trailhead. Once inside the park, it’s less than a 2 mile hike roundtrip, but then everything in reverse. It was well worth it!
Walking through the park, I had visions of Jurassic Park.
I definitely recommend hiking to Monoa Falls!