Did some training on the big island, and your right, 1 mile from the water it turns from island to Montana real quick. Never got to hunt there, but there are a lot of game animals, and tons of pigs in and near Pohakaloa Training Area. If you ever get the chance to hike or ride up Manau Kea, you will never forget the view. Also although Oahu is a little more guarded with locals only hunting, there are a lot of pigs in the jungle areas there....we had a few run ins with them while I was there.