Love nature and digging in your garden? Have we got a volunteer vacation for you! The National Botanical Garden on the island of Kauai in Hawaii has been dedicated to preserving tropical plant diversity through research, education and by creating a safe haven for at-risk plant species for more than 30 years. Their headquarters at The McBryde Gardens features native Hawaiian Flora, orchids, palm trees and flowering trees that were wild-collected from tropical regions around the of the world.

Visitors to this eden are able to explore the garden via paths and bamboo bridges that cross over the park's natural streams and waterfalls. The garden is always looking for volunteers for the long-term or on a "vacation and volunteer" basis. There are endless opportunities available year-round using a variety of skill-sets. But that's not to say you need any special skills to help out, the garden's staff provides on-the-job training for newbies.