Like the hotel in which it's housed (Halekulani, "House Befitting Heaven"), La Mer is pretty much heavenly: a softly lighted, low-ceiling room has its windows open to the breeze, a perfectly framed vista of Diamond Head, and the faint sound of music from a courtyard below. The food captures the rich and yet sunny flavors of the south of France in one tiny, exquisite course after another. Three prix-fixe options are offered (from three or four courses or a tasting menu), as well as several rather expensive supplements. We recommend the degustation menu; place yourself in the sommelier's hands for wine choices from the hotel's exceptional cellar. Jacket or long sleeved shirt required for gentlemen. For the most elegant cocktail experience you'll find in Waikiki, visit L'Aperitif bar located inside the restaurant. Reservations essential. Credit cards accepted. No lunch.