1.- 2001 INNERSPACE ODYSSEY EXPEDITION ASSOCIATION FOR MEXICAN CAVE STUDIES; AUSTIN, TX; USA; UNITED STATES, 2002 Ver registro 2.- Coahuila caving Association for Mexican Cave Studies; Austin, TX; USA; United States, 2005 Ver registro 3.- EXPLORATION DURING MEXPELEO 2002 ASSOCIATION FOR MEXICAN CAVE STUDIES; AUSTIN, TX; USA; UNITED STATES, 2003 Ver registro 4.- High desert caving Association for Mexican Cave Studies; Austin, TX; USA; United States, 2006 Ver registro 5.- Proyecto Espeleological Purificacion; car capers in Chupaderos ;Proyecto Espeleological Purificacion; cavers in Chupaderos Association for Mexican Cave Studies; Austin, TX; USA; United States, 2006 Ver registro 6.- Summer caving in the Riviera Maya Association for Mexican Cave Studies; Austin, TX; USA; United States, 2013 Ver registro
