Action 2: Robinson Island

The artist became the character of Robinson for one day; and lived on one of the small islands in the middle of the river. The island in the river is inaccessible; it can be appreciated only from a distance. It is the question of how could people use such space in public if it remains unreachable? Where is the boundary between private and public? Dose it become a private space if some individual occupies it with their life?