Archaeologists are piecing together more details about how the Rapanui people once erected the formerly enigmatic stone statues, or moai. But one of the island’s lingering mysteries is how the Rapanui found enough water to sustain thousands of people on a small island. Easter Island, or Rapa Nui, has no permanent streams, and its three lakes are hard to reach and far from archaeological evidence of settlement. But when European colonists arrived in the late 1700s, thousands of people already lived on the island, and they had to be getting their drinking water somewhere.
According to geoscientist Tanya Brosnan of California State University, the Rapanui probably got at least some of their drinking water from places along the coast where fresh groundwater seeped out of the island’s bedrock and into the sea. The