Aloha from Kaua'i!
Something that is new here on island are signs that tell you which ancient ahapua'a or moku (district) you are entering into....you might see these signs on the side of the highway and have no clue what they are since there is no explanation given. Each one has a symbol also, such as a fish, etc. and that is because....."They’re all named for specific purposes and for real reasons like agriculture — there were differences between certain areas." This from acticle linked below.
Here is an article that explains what they are and who the people are behind it:
For instance if you are driving from Lihu'e to here in Koloa - you will see a sign on the right side of the highway saying "Kona" - and if you are going the opposite way towards Lihu'e, you will see one saying "Puna"......these are the ancient ahapua'a or moku and for the first time they have been accurately mapped out and designated on the highway here.
I think it is a little unfortunate that probably most visitors have no clue what these signs are since there is no explanation that I see anywhere given for them.
But it is a great thing for the island and the cultural history of Kaua'i.