You plan to stay only on Oahu island ?
Honolulu / Waikiki looks like any other big over-crowded seaside city (Miami Beach, Rio, Phuket, Andalucia coast in Spain...) with huge towers and people everywhere.
The Oahu North Shore is less touristic and more enjoyable IMHO.
But if you can, spend some days on the three other major islands :
- Hawaii (Big Island) with Kilauea volcano (on eruption since 1983 ! on a lucky day you can see clearly the lava flow at dusk), Kamuela area (looks like Switzerland with a huge ranch with cattle and horses), Kailua-Kona area (sportfishing, golf)...
Take a live look at the hot spot of Kilauea volcano : [
hvo.wr.usgs.gov]
- Maui with the fabulous Haleakala Crater National Park at dawn (remember Jimi Hendrix / Rainbow Bridge) , the scenic Hana road on the east coast...
- Kauai with the Waimea Canyon ("The Grand Canyon of the Pacific") and the Na Pali coast (sharp cliffs falling in the ocean).
Helicopter tour is a must on Kauai.
Say hello to Duke Kahanamoku on Waikiki beach :
[
www.co.honolulu.hi.us]