Lambir hills national park containsone of the worlds most complex and diverse forest ecosystems in a total area of nearly17 180acres 6 950 hectares it is cited as having some of the greatest plant biodiversity on the planet in addition plentifulbird species plus flying squirrels wild pigs gibbons monkeys barking deer and untold insects contribute to lambirs rich kaleidoscope this half day trip from miri includes a guided hike and waterfall swim