@ Glasshouse- I have been to some of the cloud forests on the big island, and I took a tour of the cloud forest at Haleakala State Park in Maui. I grew up on the big island so I have explored most of what it has to offer. The forests are beautiful but inhospitable. People may want to visit these forests, but it is not for the casual outdoors person. They can be very wet, cold, full of bugs, and uninviting. If you can get over this, and be respectful of the land and the history associated with cloud forests, then you will see something few see in their lifetime.
Walking through Hawaii's cloud forests is one of the most surreal experiences you will ever have. Everything is covered in a thick moss, tree ferns tower overhead, and there is so much moisture in the air that sounds muffle with an eerie unfamiliarity. You are surrounded by spider webs glistening with dewdrops, and every so often the blood red blossoms of the Ahia tree break through the pale mist like miniature fireworks. Go if you can, you will not regret it.