If you are vacationing on Oahu and looking for an easy hike to a beautiful waterfall, the Manoa Falls hike may be the hike for you. It is close to Waikiki, just behind the University of Hawaii in a beautiful tropical rainforest. Since this is a rainforest, the trail will most likely be wet and muddy so proper footwear is encouraged ( I wore flip flops, as usual, and was sliding quite a bit on the plank portion of the trail). It begins with a walk through a bamboo forest which quickly turns into lush rainforest. Mosquitos are plentiful in the forest so bug spray is a must. The walk is absolutely beautiful and short enough for the whole family to enjoy (1.5 miles round trip).
The reward at the end of the trail is the 150 foot Manoa Falls. Its a beautiful waterfall and it flow is dependent on how much rain the Ko'oaus Mountains are receiving at the time.
If you would like more information on this hike, including directions from Waikiki, click here.