Youth Challenge Australia (YCA) is a nonprofit organization that engages Australian volunteers in grassroots development work in Central Australia, Vanuatu, India, Costa Rica, Guatemala, Mexico and Guyana. YCA aims to improve access to education, infrastructure, healthcare, and cross-cultural understanding through small team projects identified by local communities. Since 1996, over 2500 Australian youth volunteers have built schools, water systems, delivered health education, and implemented environmental and women's empowerment programs through YCA.