Waimea Canyon, the "Grand Canyon" of Kauai, is a must see. Interesting way the light affects the scene up there. <br><br>Hanalei Bay and the Na Pali Coast are lovely as well. If you can take a kayak trip along the Na Pali Coast, I would recommend that. I haven't done that, they didn't have that when I went to Kauai, but it looks like a cool thing to do.<br><br>Helicopter tour of the island, I think a flight over the island and along the cliffs of the Na Pali Coast would be very beautiful.<br><br>Kauai as I recall does not have that many great beaches, did not find that many good snorkeling places either. But, Carp can fill you in I am sure on some we most surely missed.<br><br>Wizard Publications has great books on the islands, I think they have one on Kauai as well. Check them out. Highly recommened books!<br><br>Have a great time!<br><br><br><br>http://www.wizardpub.com/kauai/kauai.html<br><br>