Irati and her family will travel from Aguilar de Campoo to Bilbao to visit Irati's grandparents from June 1st to 3rd. They will go to the beach in Laredo on the first day, take a walk in Bilbao on the second day, and visit a museum about the Iberians on the third day before returning home. The document provides details about the participants, transportation plans, what Irati is bringing, and sights to see in Bilbao.