Either Aloha or Hawaiian will take ya (you'll have to sit in the back, of course). If you take the first flights of the day(ouch), you'll have the best chance of getting a seat. Avoid Friday and Sunday afternoons.
- If you like hiking, the Na Pali coast is phenomenal.
- If you like really, really, long hiking, the 11-mile Na Pali Coast hike to Kalalau beach, camp overnight, hike back is awesome.
- If you like scenic boat rides and snorkling, the Na Pali day trips rock.
- If you like Kayaking, the Wailua Falls kayak trip is easy and beautiful.
- If you like endurance kayaking and phenomenal views, the guided Na Pali Kayak trips from Haena to Polehale Beach (all day) are great.
- If you like fishing for big fish, Nawiliwili Harbor has Charter trips available ( I recommend Capt Wild Bill if he's still there)
- If you like horseback riding along sea cliffs (it's safe), then CMJ Stables in Poipu is for you.
- If you like golf, Princeville and Poipu are great as well as Kiahuna.
-Scenic drive with an a$$kicking view...Drive up to Koke'e and hike down into Waimea Canyon a ways. There are some private waterfalls to be found around there
-Go for a swim at Brenneke's in Poipu.
-If you have taken complete leave of your senses and find helicopters amusing, the waimea canyon tours are worth the coin.
Kauai is my favorite Island. Let us know how you liked it.
By the way, do you have a degree? (inside joke, that a few here will get, especially PilotYIP)