I'm a teacher at a private girls' school. One of our annual trips is to the South Pacific, and one day I lead a smaller group on a day trip between some remote islands to study how the inhabitants live sustainable lives.There's only me, the pilot, and 5 girls in a sea plane. The plane develops engine trouble and has to ditch in the lagoon of a small island. Unfortunately the pilot bangs his head on impact and is killed. The girls and I have only minor injuries, and we struggle free and into a life raft and make our way to the shore. The plane sinks behind us.
We discover that the island has been previously inhabited but since abandoned. There are cabins with beds and left-behind supplies, even alcohol, and a garden that was used to grow fruit and vegetables that could be restored.
After a few days we recover from the shock of the crash and the pilot's death and the fact we're in the middle of nowhere. We explore the island and and realize what a beautiful paradise we've stumbled on.
With a little work to the cabins and gardens we could make it sustainable, we've studied how to do it. There's only Amy, Kate, Molly, Charlotte and Grace, and me, their favorite teacher, on the whole island. I have food and drink, five beautiful eighteen-year-old girls, and all the time in the world...