Let's just say that I chose to leave that out. But since you mentioned it...
The Dole Plantation is only about 30 mins from Aulani. It is a nice experience, though like any other tourist destination, a money pit. Pay for this, and this, and this, and oh yeah, this too. But at least parking is free. The Plantation Grille has a nice menu too. And the options for your Dole Whip are plentiful. Dish, cone, sundae, float, toppings, souvenir pineapple cup... wow.
I rode the train through the pineapple fields, and had a nice view of the central Oahu valley. I looked at the Koi pond, skipped the Garden tour, skipped the world's largest Maze, and endured the gift shop, but didn't buy anything.
After that, I headed north for 10 minutes to the North Shore. That was, beautiful, what I saw of it. I was headed back south to Pearl Harbor, and didn't want to stay too long at the shore, since I was supposed to meet my brother after I was done at Pearl Harbor. Unfortunately that changed due to his work situation, I later found out, so I could have lingered longer. Oh well, next time...