Rainbow Falls (IMAGE) University of Vienna Caption Scenic Rainbow Falls close to the city of Hilo on the Big Island of Hawai´i. 100 percent percent of the plants surrounding this popular tourist attraction are non-naitive plants introduced. Credit © Holger Kreft Usage Restrictions The image may only be used with appropriate caption or credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.