Sure, there's more you could perhaps try to squeeze into a day along Oahu's windward coast — but when your destination for the evening is such a jewel as the North Shore's Turtle Bay Resort, you want to arrive with time to settle in, relax, and enjoy the property. (They'll have no qualms whatsoever if you arrive still a bit soggy from an afternoon playing in the ocean.)
Plus, the North Shore's sunsets are legendary — and Turtle Bay Resort has some prime viewing options; well, pretty much anywhere on property facing the ocean, but also consider Turtle Bay's open air Sunset Bar or its onsite restaurants.
As a dinner alternative to dining on property, if any of the food trucks around Kahuku caught your eye, they're just 10 minutes or so back down the road. Keep in mind though that they do tend to close up shop around 6:30 – 7:00 p.m.
Also keep an eye on what time the sun sets — because in Hawaii, that's something special to behold.