The forty-third National Meeting of Leaders of the Brazilian Federation of YMCAs occurred in a 26 January 30, 2010 in the premises of the ACM São Paulo - Center and with the participation of YMCAs of Rio de Janeiro, Sorocaba, Rio Grande do Sul and São Paulo .

The main theme of the meeting was education, discussed through lectures and group work during the days of the meeting. Furthermore, the topic of sexual diversity has been inspiration for many discussions and clarifications.

In the cultural program, the young people had the opportunity to watch the stage show "Anatomy Frozen" that addressed the topic of pedophilia besides visits to Pinacoteca do Estado de São Paulo and Altino Arantes Building, one of the highest in the state capital and overlooking inside the city of São Paulo.

Daily devotional moments were performed with the support of the Independent Presbyterian Church and addressed the theme "Passion for Life" through an ecumenical celebration. Lots of music and reflection were the key points of this activity.

Topics related to leadership were also addressed as part of the "YMCA Polis" a board game created by youth leaders ACM São Paulo to simulate the management of a city through the application of budget and analysis of the situation and needs of the population.

At the end, the young have decided on the theme for the next meeting as "The sports events and social responsibility acemista", aiming to seize the opportunities arising from the 2014 World Cup and 2016 Olympics in the context of ACM.

The activity culminated with the approval of the "Charter of the Great Rock" that records the results of the meeting and comes in more depth on the topic chosen for the next year. The name "Big Rock" was a choice of young people inspired by one of the songs worked during activity daily devotional.