Haleakala National Park is a nice reprieve from the rest of Hawaii. The land is mostly bare of vegetation. The hills glow red and brown and grey and green. Cold wind whips at tourists unaccustomed to mountain air. After all, they may have been overheating just an hour before. But now they are on top of the volcano, at ten thousand feet. So, like I said, it's a reprieve. You'll be back down at the ocean, snorkeling, in no time, but Haleakala's colors will linger on in your memory..