The flora and fauna are so exotic that you'll want to have lots of film to capture it all.
Colors appear more vibrant in the tropics.
Your goal is to get as much detail as possible in the shaded parts without losing the vibrant colors of the sunny areas. A few simple techniques can help you handle these types of scenes, such as those listed in Forests and Trees . But if all else fails and you just can't get the effect you want, try using the time of day to your advantage. As the sun moves, so do the shadows. By studying the colors and shapes of your composition, you'll be able to achieve some outstanding pictures.