evidence: Our Green Space Index (GSI) is a unique data tool designed to track and analyse green space provision across Great Britain. The 2024 Green Space Index focuses on the accessibility of playgrounds for Britain's children, after growing concerns about a crisis for play, with far-reaching implications on health, wellbeing, and physical activity levels. [...] Throughout the pandemic the huge value of green spaces to local communities has been underlined, and going forward parks should be embraced as an important part of our collective recovery. The Green Space Index will provide a key tool for Local Authorities to identify inequity of access to green spaces, and to protect them for communities now and in the future.