Spiral Island: DIY Floating Island with 250,000 Empty Plastic Bottles
In 1998, British eco-pioneer Rishi Sowa decided to build his own private island using nets filled with empty plastic bottles. He poured sand and planted trees, and called it Spiral Island: The original Spiral Island...
https://www.neatorama.com/2007/11/20/spiral-island-diy-floating-island-with-250000-empty-plastic-bottles/