The event has been held every year since 1996 and is organised by the Earth Day Association. It is the biggest event held to celebrate Earth Day in Catalonia.

The fair is a festival for protecting the planet, and it is held over a weekend in Ciutadella Park and Passeig de Lluís Companys. Hundreds of craftspeople and dozens of NGOs and other organisations take part. There is a varied and extensive programme of activities. There are conferences on personal growth, book presentations, meditation sessions and dances from around the world. There is also a food market where farmers and small-scale food producers sell their products directly to customers.

Ciutadella Park and Passeig Lluís Companys