In May 2011 impossible2Possible will be visiting the mountain nation of Bolivia, to run across the world’s largest salt flats and celebrate the International Year of Chemistry. Bolivia is a landlocked country that sits ten degrees below the Equator in the center of South America. A nation of contrasts, Bolivia is one of the economically poorest countries in latin America, but boasts a rich diversity of cultures, languages, flora and fauna. While to the North-East, Bolivia features a lush tropical basin that feeds the headwaters of the Amazon River, South-Western Bolivia is very dry and situated on a high plateau that straddles the Andes mountains. Nestled high on this plateau among volcanoes and lakes is the Salar de Uyuni, the largest salt flats in the world. The Salar de Uyuni is home to ten billion tons of salt, and more than half of the world’s lithium reserves. With one meter of elevation change across the 10,000 square kilometer flat, the Salar is used by NASA to calibrate satellites, including those that detect changes in polar ice sheets. Four Youth Ambassadors will be selected to join Ray Zahab, and fellow i2P adventurers in a 250 km running expedition across the salt flats. Youth Ambassadors will run an average of a marathon per day for one week in a quest to experience this incredible country as few have ever done before.