I'm glad you had a great time!
I love the turtle pictures.
I live on Maui and was born and raised here. I'm not a fan of lau lau or poi, but I love kalua pig and haupia!
Just wanted to add that spam sushi is called spam musubi in Hawaii. If you called it a spam sushi in Hawaii, it would instantly give you away as a tourist. It's not usually served in restaurants (though it is in a few and one place makes a battered and deep fried version!!), it's more of a quick gas-station/convenience food.
Spam is also a common ingredient in fried rice here. You can even have your loco moco served on fried rice. Very tasty!