Fishermen in West Kalimantan, Indonesia build enormous fish traps out in the shallows of the South China Sea. Using slender poles stuck into the mud, they construct large v-shaped traps that funnel all the fish that swim by into a net (located under the house shown in the picture). A kerosene lamp is usually suspended above the net to attract insects and lure the fish. The traps, which may extend out for several hundred meters, are visible from space. On satellite photos they look like landscape sculptures designed by Christo and Jeanne-Claude.