Best Oahu hikes with some of the best views: Diamond Head Hike! For US hiking trails in Hawaii, tons of hikes on Oahu to choose on Hawaii vacation! Doing best hiking trails on Oahu gives things to do with nearby beaches for swimming, snorkeling, and to see turtles! Planning tips for this crater hike trail summit near Waikiki and Honolulu with what to wear hiking in Hawaii and what to pack and add to Hawaii packing list. Outdoor travel destinations for bucket list and budget adventures!