The ACS is an annual 2km-swimming event through the Amsterdam canals and Amstel aiming collect donation money for the ALS Foundation Netherlands and call attention to the deadly disease ALS. In 2016 (5th edition) more than 3000 participants took part and collected more than € 2 million. The ACS Foundation has an international ambitions to organize a Swim in 7 cities of the world Objective: international cooperation between foundations ALS. In June 2017 we organize, after 2015 and 2106 in New York, the London City Swim. On September 3th the 6th edition of the ACS will take place.