Earth Day 2025 | April 22

Walk Through Earth's

4.6 Billion Year Story

Join hundreds of people worldwide for the largest global Deep Time Walk celebration to date.

Experience Earth's extraordinary journey through a guided 4.6-kilometer walk where each meter represents one million years of our planet's evolution.

Find a Walk Near You
People enjoying a nature walk

The Deep Time Walk Experience

A Deep Time Walk is a transformative, embodied experience that helps us reimagine our relationship with our living Earth. By walking 4.6 kilometers to represent 4.6 billion years, you'll explore the key events that shaped our planet—from its fiery beginnings to the emergence of life and the recent appearance of humans.

This Earth Day, we honor the legacy of Dr. Stephan Harding (1953-2024), who co-created the Deep Time Walk with Sergio Maraschin at Schumacher College. His pioneering work in deep ecology has helped thousands reconnect with our living planet in profound ways.

"When we take a Deep Time Walk, we experience a profound shift in perspective. We begin to feel in our bodies the vast journey of our living Earth, and our own deep belonging to this extraordinary planet."
— Dr. Stephan Harding

Find a Walk Near You

Explore the map below to discover Deep Time Walks happening worldwide around Earth Day 2025. Click on a marker to see details about each walk and registration information (for public walks).

Don't see a walk in your area? Consider hosting your own! We provide all the resources you need to lead a successful Deep Time Walk.

What You'll Experience

A Sense of Deep Time

Experience the vastness of 4.6 billion years at a human scale, where each metre represents 1 million years.

Earth's Key Revolutions

Discover pivotal moments from the formation of our Moon to the emergence of photosynthesis, complex life, and the recent appearance of modern humans (in just the last 30cm!).

Global Community

Be part of a worldwide movement of people walking Earth's timeline together around Earth Day 2025.

Perspective Shift

Many participants describe a profound change in how they perceive their relationship with our living planet.

Join the Movement

Attend a Walk

Register for a Deep Time Walk near you by exploring the map above. No prior knowledge required—just bring comfortable walking shoes, weather-appropriate clothing, and curiosity about our planet's story.

Host a Walk

Become part of the global movement by registering to lead your own Deep Time Walk. We provide comprehensive resources, including:

  • Complete facilitator guide with recommendations for Earth Day adaptations
  • Promotional materials and templates
  • Online training and community support
  • Special Stephan Harding tribute elements
REGISTER YOUR WALK ACCESS FACILITATOR TOOLKIT

What Participants Say

"The Deep Time Walk completely transformed how I see my place in Earth's story. The realization that all of human history occupies just the last few centimeters of the walk was mind-blowing." — Maria, London
"This experience created a profound shift in my perspective. I now understand viscerally how we are part of a much larger, older story." — David, Melbourne
"Leading a Deep Time Walk in my community was one of the most rewarding experiences. The conversations that emerged brought us closer to each other and to the Earth." — Sophia, Toronto

Continue the Journey

Participating in a Deep Time Walk is just the beginning. Join our global community to deepen your connection with Earth and help create a regenerative future.

  • Become a Facilitator: Learn to lead Deep Time Walks through our comprehensive training programme.
  • Join Our Community: Connect with like-minded individuals worldwide
  • Access Resources: Explore our library of materials to deepen your understanding