Read more: 25 Enchanting Real Castles Around The World Among the best things to do in Hawaii is the hike to Manoa Falls, which is also one of the most iconic activities on Oahu. It's a short drive ...

U.S. News Insider Tip: Manoa Falls is located in Manoa Valley, home to the University of Hawai'i at Manoa. The university's football team, the Hawaii Rainbow Warriors, gets its name from the ...