A year and based on the experience gained in previous years, the Group Security Association Headquarters Air Force organizes the fourth edition of the Crossing El Escorial - Navacerrada, which will take place on June 17, 2016 .
The test will take place in the natural environment of the Sierra de Guadarrama and its main objectives to promote values such as companionship, resistance, effort, spirit of sacrifice and achievement, while promoting love and respect for the nature.
The crossing is open to members of the Spanish Armed Forces, Forces and State Security, civilian personnel working for the Ministry of Defence, as well as personnel of institutions and entities that provide authorizations and supports necessary to carry out the quiz. In order to ensure the best conditions of safety and care, participation is limited to 300 competitors.

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