Ibilaldia is essentially a volunteer walk around a circuit of 5-10 kilometers, that is surrounded by food stands and entertainment, and walkers sometimes make the walk in support of an organization.

The money they collect it is used to help the Basque schools in the province of Biscay.

Parents, teachers and students help to have everything prepared for the main day.

At the end of the 1970s the movement created to promote the use of Basque language in schools grew a lot and started to be structured.

The festival of Ibilaldia was born in 1978 in Getxo promoted by this general context of creation of new ikastolas.