Clustered at the heart of the Hawaiian archipelago, the islands of Maui, Lanai and Molokai lie close enough to one another to make interisland day trips from Maui an easy activity option for visitors.

After more than a decade on the shelf, Maui-based Trilogy Excursions has brought back its Ocean Adventure Camp for children. The one-day camp is coupled with the tour company's flagship Discover Lanai ...