Visited a tropical rainforest today :)
Through research on the internet for waterfalls, I came across Lyon Arboretum. If ever you are in Oahu, you must visit this place. It is a completely different Oahu than anything we had yet visited. Just remember to bring bug spray!!
It is almost always raining there, so bring a poncho or buy a plastic bag with a hood from the visitors center for $1.25.
Unfortunately, because of the rain, I wasn't able to take many photos :(