
Giant Sand Tubes Deployed Underwater To Create an Invisible Barrier Against Erosion
The coasts of Mexico's Yucatan are fighting nature's power with nature's own materials. Giant, sand-filled fabric tubes (geotubes) placed under the sea to prevent coastal erosion and restore beaches have heralded a new era in coastal engineering. These 'invisible barriers' constructed in place of concrete walls are protecting the shores from hurricane destruction by breaking down wave energy.



















