Their fish and chips are delicious! Get a Duke's Mai Tai or Vintage '44 Mai Tai, or both like we do! Duke's is right on Waikiki beach. There is a rental stand, right on the beach, that lets you rent beach chairs & an umbrella for $110 for the whole day. We love to come early, rent our chairs, swim and then enjoy Duke's for lunch.
Our favorite beach! It is about an hour drive from Waikiki but worth it.
The Diamond Head hike is a popular .8 mile hike from tail-head to summit with panoramic views of the ocean. You do have to make a reservation on the Hawaii.gov page.
You can't come to Hawaii and not have Leonard's Bakery. Their Malasadas are AMAZING. They are a Portuguese doughnut without a hole coated in sugar. They also have them filled with your filling of choice.