Oahu, home to Honolulu (Hawaii's capital), is ... family-friendly hike through the lush Manoa Valley rainforest. Read more: 25 Enchanting Real Castles Around The World Among the best things ...

Sharael Kolberg, Contributor, Travel This approximately 150-foot-tall waterfall, which sits 5 miles northeast of downtown Honolulu ... on a well-worn path. The rainforest scenery is otherworldly ...