The Big Island is one of the best places in the world for cloud watching. They are incredibly  dynamic here. Over the mountains the are constantly forming and dissipating as the strong winds move the air quickly past. In the passes between the big volcanoes you stand right in the clouds and fog as they move past. The damp marine air from the windward side of the island rapidly forms clouds as it is swept up to lower pressures and cooler temperatures on the mountain slopes. These same clouds dissipate rapidly when mixing with the hot dry air on the leeward side.

One perfect place to watch this is over Waimea and the old Kohala volcano. With the tradewinds blowing a time lapse shows the process more clearly with the formation and dissipation shown at several times real speed. The video below shows a scene from the summit of Mauna Kea looking north to Kohala and across the channel to Maui and Haleakala.