Ancient stone wall on Big Island

[JKR]

I was watching a show on HGTV about people shopping for homes in Hawaii. In one episode, a family shopping for a home on the Big Island looked at a house in the Kona area and it had an ancient rock wall running down the property line. The real estate agent said the wall ran for 5 miles.

I'm headed to the Big Island for vacation in a couple of weeks and am curious about this wall. I can't find anything about it in guidebooks or online. Does anyone know where this wall is located, how it originated, and where you can see it without trespassing?

Thanks!