Thousands of activists hit the streets to celebrate World Water Day — and demand that congress pass a bill declaring access to water a human right. Photo by Alfredo Carías. On March 22, thousands of people marched on the streets of El Salvador’s capital city, San Salvador, to mark World Water Day — an international day recognizing water as a basic human right, and a resource that must be protected. Carrying posters, banners and flags, people led powerful chants: “ Sin agua y sin semillas no hay tortillas!” (“Without water and without seeds, there are no tortillas) and “ El agua es un derecho y no una mercancía!” (Water is a right, not something to sell”).