The photo gallery on Duke's web site doesn't do justice to the restaurant!
The restaurant has two levels (the lower level is open for lunch or light dinners), is right along the beach (next to the Marriott), and has an open-air design. You have a choice of seats that are close to the ocean, or you can choose seats close to the waterfalls or, of course, in between, where you can relax and enjoy both the ocean and waterfall views! Most early evenings feature a Hawaiian band that plays as you eat. We enjoyed one evening of drinks and appetizers (with a couple that Bob had played golf with in the Poipu Beach area).
The upper level is for dinner and has open sides but a more enclosed feeling. You can choose a seat along the ocean or a seat where you can overlook the downstairs waterfalls. Again, the atmosphere is very relaxing.
This was our last evening out and instead of choosing a fish dinner, I was torn between two of the entrées listed under "island favorites": Big Island pork ribs (I love ribs!) or the combination ribs with Huli Huli chicken--the waiter steered me towards the ribs and they were delicious! They were cooked just right and the sauce was not overly powerful but managed to make the difference between ordinary and great ribs.
The waiter was very friendly as he explained to my husband (who was choosing one of the fish selections) that the menu had two parts: the first was deciding which fish you wanted (mahi mahi, opah, a’u, etc) and the second involved deciding the preparation (baked, roasted, coated, etc.).
Both meals included the salad bar, which had lots to offer, including delicious sourdough bread (which I loved), muffins (which I found so-so), and Caesar salad that actually had anchovies; I was in heaven, since most Caesar salad skip the best part--the anchovies! We had enough food left over to reheat for dinner the next night, and the food was still great the second time around.
The cost of dinner for two (including a couple of beers, sodas, but no dessert, tax and tip) was $68.
See for menus and other information .