Here are my two cents:
There are many beautiful places on Kauai but nothing comes close to the beauty of it's Napali Coast! Not to be missed, must see, call it what you would like!
While Waimea Canyon is worth a drive, I wouldn't spend my only day on Kauai exploring it. If you opt for a driving tour you eventually get to Kalalau Lookout Kalalau Lookout , which will give you an idea of the Napali Coast and what you would have seen, had you taken the boat tour.
During our trip we went on a tour with Holo Holo Charters :: Kauai, Niihau, and Napali Coast Boat & Snorkeling Tours . They were running a special at the time and offered great value for money. Had we had more money we would have opted for Kauai Sailing Adventures and their amazing vessel, the Southern Star, https://www.napali.com/southern-star/ that is more appropriate for discerning Luxury Link travelers.
As far as the helicopter tour goes, though I'm sure it would be worth it, it was too expensive for us and didn't allow enough time to take in the views.
If I still haven't convinced you, check these pictures out: http://www.lovethesepics.com/2012/03...r-adventurers/
Your visit to Napali will leave you with memories that will last a lifetime! Don't miss out!
Depending on the season, keep your eyes open for whales, dolphins and sea turtles.
Make sure you protect your camera from the salty mist.
LL_Travelfan likes this.