MONSTRA 2026 has Nature and Sustainability as its main theme. In partnership with the festival, VERDE is organising a guided walk to visit some of Lisbon's Green Giants. These are monumental trees that live in the city and, despite their size and importance, often go unnoticed. Along the way, we will stop, observe and learn more about these large trees, understanding their ecological, climatic and cultural value. An opportunity to look at Lisbon more closely and rediscover the nature that is already part of it. Up to 30 participants