The international community is increasingly recognizing the importance of youth's meaningful engagement and empowerment for managing long-term climate change challenges, and of their consultation on policies and decisions that affect their well-being and sustainable development. Yet the extent to which new learning is generated in current spaces for youth participation in local, national and global negotiations and decision-making on environmental issues remains less understood. This Chapter discusses the importance and effectiveness of youth-targeted and youth-led environmental conferences, forums, workshops and similar events in advancing the learning experiences of youth participants in these events. Testimonials from young people, generated through in-depth interviews of youth participants at environmental conferences and forums in the Netherlands and South Africa provide key insights into their engagement. The findings highlight the need for more empowering and critically engaging platforms for youth participation and for adequate mentoring of young participants.