On the 'must see' list for visiting Kauai is the Na'Pali Coast. Stretching for 15 miles, it is a truly breathtaking natural formation. In order to capture the epic expanse, I'd suggest a helicopter tour. There is nothing better than swooping along the 'cathedrals,' as this section is called, and then shooting through the canyons on the other side. It is an exhilarating experience that'll keep you buzzing even when you are firmly back on the ground.