The Rainbow Eucalyptus trees of Maui are found on the drive to Hana. Like good tourists, we read up on them before heading out, and yes they are there ready to be touched and photographed 🙂 Everything about the color is natural. Annually patches of outer bark are shed, leaving the inner bark exposed. This then darkens to a mix of blue, purple, orange and maroon. It really looks like someone painted the trunks!