How did it happen that I landed on board of a helicopter to watch the wonderful Na Pali cliffs, actually on board of two helicopters? The larger part of the Hawaiian island of Kaua’i is not available from land due to inaccessible mountains. That’s why a helicopter trip is the best option to see the whole island. When you look at photos from Hawaii, you can get the impression that there’s always a great sunny weather. However, the location of the archipelago in the middle of the ocean and the mountainous terrain make a specific climate that is characterised by high rainfall and moderate temperatures. A large amount of precipitation…