All students attending ES International School (1st through 12th Grades) are organized into one of eight Spirit Houses. The Spirit House System provides students with an opportunity to stay connected about topics that concern them, promote a healthy and constructive mode of competition based on behavior, results and cooperation, establish leadership modules, and foster a sense of community and collaboration among peers. Towards the end of the year, the Spirit Teams participate in a two part competition: Spirit Day and Mental Mania. Students put their academic and athletic skills to the test for a full day of fun, exciting competition. It is easily the most anticipated event of the year.