A conga line of rental cars forms at midday on Maui, as tourists line up to twist and turn for 40 miles of one-lane bridges and waterfalls along the way to the quiet town of Hana. Driving isn't the only attraction. The Hana Highway presents many opportunites to wander into the rainforest, but you have to know where to look. Wahinepe'e Falls, for instance, is hiding in plain site up and behind a well-signed botanical garden.
The Waikamoi Nature Trail is also easy to find (though parking can be a pinch) but not many visitors know about Kolea Road, which branches off the main trail to make a loop through a bamboo forest.