Want to know how to get up near the top of Hualalai (the volcano mountain above Kona)? Take Palani Road out of town (east). It winds a bit, and then straightens out. About a mile after the road gets straight (and speed limit goes up to 45 mph), look for a road on the right called Koloko Road. Go up this road several miles. It does a number of switch backs and takes you up pretty high. Eventually, you get to a dead end at a ranch. You can go a bit higher by turning around, drive a quarter mile, and taking the first right. At the end of this road, you can park.
There are beautiful fern forrests and pheasants up there. Also a grand view below of the ocean if its not cloudy and foggy.