Jack Cooke is the author of the recently published Tree Climber's Guide. He has spent the last year exploring city trees, from parks and gardens to streets, roundabouts and riversides and his book tells the story of what he discovered in their branches. He believes passionately that adults should climb trees as much as children, and that by doing so, we forge a deeper connection to our natural surroundings. We welcome Jack to the festival this year for a much anticipated talk and lead a tree climb.

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