Just a jog away from the Hawaiian Airlines Diamond Head Classic at Stan Sheriff Center is Manoa Falls, a beautiful waterfall with an easily accessible hiking trail. The walk up the mountain to view the 150-foot waterfall takes about 45 minutes for the novice hiker. It’s an excellent spot for a Kodak moment. Because the waterfall is within the rain forest zone, some rain is likely, and it is recommended that hikers wear appropriate shoes and bring insect repellant. And, for the curious: No, the water in Manoa Falls’ pool isn’t safe for swimming in or drinking. On the northwest side of O’ahu, in the Waimea Valley, guided tours are available for hiking to Waimea Falls. For the truly adventurous, one-hour helicopter tours will take visitors across O’ahu to discover hidden waterfalls and lush rain forest landscapes, sugar plantations and volcanoes and craters from overhead – the best possible view of mighty Diamond Head.