
A 4.6 km walk through 4.6 billion years of Earth’s natural history


Sunday, April 26, 2026
10:00 – 13:30
3 hr 30 min
English
Earth Day 2026
Celebrate Earth Day with a truly unforgettable walking experience. Step into one of the most unique experiences in Mexico City. On this guided Deep Time Walk, we will journey through the 4.6 billion-year history of Earth while walking through the historic center of one of the world’s most fascinating cities. Every meter equals one million years. From the birth of stars to the rise of Tenochtitlán. Join here: https://www.eventbrite.com.mx/e/deep-time-walk-mexico-earth-day-special-from-the-universe-to-tenochtitlan-tickets-1987712375222 Beginning with the birth of the universe, we will move through: 🌌 Cosmic origins 🌍 Earth’s formation 🌊 Water and the emergence of life 🦕 Evolution and extinction 🧠 Human consciousness 🌽 Agriculture and civilization 🦅 The rise of México-Tenochtitlán 🏙️ Modern Mexico City As we walk through plazas, streets, and ancient layers of the city, you will discover how deep planetary time intersects with the cultural history of this extraordinary place.
EARTHDAY.ORG’s mission is to broaden, educate and activate the environmental movement worldwide. Growing out of the first Earth Day in 1970, EARTHDAY.ORG is the world’s largest recruiter to the environmental movement, working with more than 150,000 partners in over 192 countries to drive positive action for our planet. Our world needs transformational change. It’s time for the world to hold sectors accountable for their role in our environmental crisis while also calling for bold, creative, and innovative solutions. This will require action at all levels, from business and investment to city and national government. That’s where you come in: As an individual, you yield real power and influence as a consumer, a voter, and a member of a community that can unite for change. Don’t underestimate your power. When your voice and your actions are united with thousands or millions of others around the world, we create a movement that is inclusive, impactful, and impossible to ignore. Every Earth Day can drive a year of energy, enthusiasm, and commitment to create a new plan of action for our planet.

Explore the key moments in Earth’s history that we’ll encounter on our walk


Ciudad de México, Ciudad de México, Mexico
This walk will be conducted in English
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Mexico City, Mexico
Paco Briseño is a regenerative leadership mentor, systems thinker, and the work that reconnects practitioner and facilitator who walks with the Earth as teacher and timekeeper. Based between Spain and Latin America, Paco integrates Deep Time wisdom into regenerative education, leadership, and inner development practices. He is co-creator of the Regenerative Inner Development Goals (RIDGs) and a long-time student of Joanna Macy’s Work That Reconnects. Through journeys like Regenerativa 21 and the Círculo de Culturas Regenerativas, Paco invites others to remember their belonging to the 4.6-billion-year story of life—cultivating cultures that honor the long arc of time, reciprocity, and the living Earth.
Walk with us to experience 4.6 billion years of Earth’s story.
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