Started out our day visiting 'Opeaka'a Falls near our cottage. It's right on the road with a parking lot, no hiking. On the other side of the the road from the falls, we saw the Wailua River which runs right next to the cottage we rented.
We drove to Lihue to see the Kauai Museum. Advertising for the museum made it sound like they had recreated room(s) of a recovered sunken ship there, but that wasn't the case. They had some artifacts that were brought up from the ship, like buttons and metal bits, all in wooden display cases. I was disappointed. I did like seeing an old hourglass, though. Mostly the museum felt like looking through someone's attic. One of the rooms triggered uncontrollable coughing in me and I had to leave. I love museums, but I wouldn't recommend this one unless it was pouring down rain and you needed something to do. The ladies staffing it were very nice.
We had some time to kill before our luau, so we drove down a road lined with eucalyptus trees to Poipu.
Before the luau, we did the optional train ride to see the plantation, the plants and the animals. It was a pleasant ride.
Luau Kalamaku because it's more theatrical. It tells the story of how the Tahitians sailed to Hawaii. And the buffet has options for vegetarians, a must. We were both impressed by how the performers all made the material seem fresh...they didn't look bored or like they were doing it by rote. I could practically feel the winds and the ocean swells when they were "rowing" their ship. It was a fun time and I recommend it.