I've spent the past 23 years visiting Hawaiian islands anywhere from a week to over a month (as well as Tahiti & the Cook Islands but that's another story for another time). It's my running travel joke that I'm a Polynesian trapped iinside a white man's body, because I enjoy remote Pacific islands so much.
At any rate, I love Kauai's North shore, especially the glaring, scenic drive from Hanalei to Ke'e beach. I also love Maui's Hana Highway area to the 7 Pools State park, with a waterfall shaped like a set of stairs. I really, really love the rainy, Hilo side of the Big Island. The area is full of unique, intense volcanic scenery and so much rain, the windward parts of these islands have the most extravagant, lush scenery and huge, hefty waterfalls all over the place.
At any rate, I love Kauai's North shore, especially the glaring, scenic drive from Hanalei to Ke'e beach. I also love Maui's Hana Highway area to the 7 Pools State park, with a waterfall shaped like a set of stairs. I really, really love the rainy, Hilo side of the Big Island. The area is full of unique, intense volcanic scenery and so much rain, the windward parts of these islands have the most extravagant, lush scenery and huge, hefty waterfalls all over the place.