At first glance, it is apparent that the makeshift benches have been fashioned together using flotsam from the Robinson's ship. You can easily see hints of crates, windows, and masts set amongst the stone walls.
Yet an even closer look will reveal intriguing carvings in the rocks, almost prehistoric in nature. The images are simple and the subject matter includes animals such as fish and turtles, people, objects such as boats and the sun, and geometric shapes. The origin of these images is never revealed, creating to a fascinating mystery. Perhaps they were created by the native people that lived on the Robinson's island, or they might stand alone as their own - disconnected from any ties to a pre-existing story.