Husband's highlight: inter-island helicopter tour (w/o doors) - this was incredible!
My highlight: kayaking to secret falls!
Together, we loved scuba diving at Tunnels and Koloa Landing, watching the birds, and enjoying the peacefulness!
Get a copy of The Ultimate Kauai Guidebook, Kauai Revealed
by A. Doughty & H. Friedman. At the airport, there are lots of travel brochures -- pick one up; there are many coupons available.
Scuba tanks are available at Princeville Hotel on North Shore. The staff at Seasport Scuba in Wailua were wonderfully helpful.
Best Way To Get Around:
You really must have a rental car.