Spread across Île aux Fagots in Amiens and several plots in Camon, the trail brings together around fifty landscape and artistic installations, designed by landscape architects, visual artists and architects from around the world, selected each year by a professional jury following a call for proposals.
The works explore major contemporary environmental issues: biodiversity, water management and fragile ecosystems.

In 2024, the International Garden Festival | Hortillonnages Amiens received the European Garden Award, recognising the finest contemporary European park and garden.