Step back in time and explore Earth history like never before with the award-winning Deep Time Walk. Walk 4.6km through 4.6bn years of geological time, learn about key concepts from Earth’s evolution and experience a unique perspective of deep time.

Designed using appropriate technology that encourages you to focus away from the digital screen and connect with the natural world around you, the Deep Time Walk calculates your speed and distance as you walk.

- Platinum Award Winner, Best Mobile App Summer Awards - Best Designed Mobile App Interface
- James Lovelock - “Everyone should download this innovative tool”
- Bruno Latour - “A masterpiece to get a sense of history”
- Satish Kumar - “When I experience the Deep Time Walk, I experience who I am”

Walk Through Time
Get outdoors to participate in a 4.6km Deep Time Walk anywhere in the world. Walking at a rate of 1 million years per metre you journey across Earth’s 4.6bn geological timeline. As you walk through time, the dramatised audio narrative between a scientist and philosopher provide different perspectives on how Earth formed. For those not able to walk, a Mobility-Assist mode is available.

Learn Earth History
The narration for the walk is based on the latest scientific evidence about how our planet evolved over the vast expanse of geological time. At the start of the walk, you learn about the accretion of the Earth from a disc of rocky debris and how our moon formed, you meet volcanoes and encounter the immense meteorites of the Late Heavy Bombardment. Later in the walk you hear about key events such as the first appearance of photosynthesis, The Great Oxidation, the evolution of the first nucleated cells, and the appearance of multicellular life. A time-contextual glossary is available to look up key concepts.

Experience Deep Time
The kinetic Deep Time Walk is an embodied experience, bringing the rational and somatic together into a unique learning tool. The last million years are measured using your body, with the final 20cm representing just 200,000 years – roughly the time during which Homo sapiens has been on Earth. The app helps you recognise the long geological processes that have produced the conditions for the evolution of life, understand our common evolutionary history with all life and consider the geological impact of humanity.

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Creative team
A team of experienced professionals have come together to produce the Deep Time Walk Mobile Guide. The script is written by Peter Oswald (ex-playwright in residence at Shakespeare Globe, London) and Dr Stephan Harding (a collaborator with Earth scientist James Lovelock).

The audio is directed by Jeremy Mortimer (over 200 productions for BBC Radio) and designed by Jo Langton (a BBC Studio Manager), with voices provided by leading actors Paul Hilton (Garrow’s Law, The Bill, Silent Witness), Chipo Chung (Doctor Who, Sherlock, Into the Badlands) and Peter Marinker (Love Actually, Event Horizon, Judge Dredd).

What’s New

Version 1.1.0

- Gaiaphonic Audio Mode
- Clock-time Remaining Indicator
- Slide across geological timeline
- Swipe UI gestures
- Streamlined graphics
- Integration of 'What's Next' portal for positive action (with organisations such as Earth Charter, and Transition Towns).

Ratings and Reviews

5.0 out of 5
5 Ratings

5 Ratings

alice8 ,


Please take a beautiful hour long walk and gain perspective on the tremendous unfolding of life, the unique and recent appearance of the human, and come to know your place in history on this glorious planet. This is an amazing app!

Geoff Ainscow ,


What a creative way to tell the story of Earth. The conversation between the fool and the scientist is totally engaging. I couldn't stop listening.

180 Turnberry ,


This is a wonderful app and I really enjoyed the walk as I learned about the history of the earth


Deep Time Walk C.I.C.
107.1 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Deep Time Walk C.I.C.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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