California and an extended urban immersion in Los Angeles, both conducted in mid-June. In 2010 Loyola again conducted a six-week Argentina Intercambio program based in Buenos Aires, expanded to include nine days in metropolitan Montevideo, Uruguay. The Intercambio is conducted in conjunction with the Jesuit colegios in Buenos Aires, Argentina, and in Santa Fe, Montevideo, Uruguay. An overview of the summer service immersion program may be found in the July 31, 2010, edition of The Tidings, the weekly newspaper of the Archdiocese of Los Angeles. Overall, each Loyola student completes a minimum of 150 hours of direct service by graduation with many of them matriculating with between 250 – 300 hours. Non-credit service activities include the annual Community Service Fair conducted each September, the Community Service Leadership Team, the annual AIDS Walk Los Angeles, the Peace and Justice Coalition, the annual School of the America's Watch and Ignatian Teach-In conducted just before Thanksgiving, Catholic Lobby Day in Sacramento, California, an annual social justice speakers series, and ongoing collection of food, clothing, books, and toys for distribution to the needy served by some of the school's 1,000 placement partners. Service and justice are two significant factors considered in making the most of the "Big Seven" awards for graduating seniors each June. Outstanding service leadership is recognized at the annual student awards ceremony and the Annual Community Service Awards Banquet held each May. Loyola is an active member of the Ignatian Solidarity Network (ISN), an association of 70 US Jesuit high schools, colleges, and universities engaged in social advocacy and justice education for students and adults. National and regional topical workshops included Loyola's hosting 500 students and adults from the US and Mexico for the 2008 ISN conference on comprehensive immigration reform. In years past, Loyola delegations have participated in national conferences on racism and poverty in New Orleans (2007) and comprehensive immigration advocacy in Washington, DC (2009). The 2010 ISN program occurred in Washington, DC, and focused on immigration, the environment, health care, and education. Loyola parent, alumni, faculty, and staff involvement in various service projects with students is a distinguishing characteristic of the Loyola program. Parents and alumni are heavily involved in staffing the Saturday tutoring programs for 8th graders and 7th graders each Fall and Spring. In December 2008 and again in October 2009, the whole Loyola faculty, staff, and administration spent the better part of a retreat day