Father Nikolaus Gorges, FSSP, is the organizer of the pilgrimage, and the newsletter for the pilgrimage, with every detail of each day, is available at the website of the International Federation Una Voce:
At the pilgrimage of these communities, all liturgies are celebrated in the traditional Latin form. ... The only sepulcher of an apostle on the northern side of the Alps, St. Matthias, is located in the Basilica, which is named after him. As organizer of the pilgrimage of the Ecclesia-Dei Communities, I cordially invite you in the name of all those communities to the Holy Tunic Pilgrimage from April 20th to April 22nd 2012. Please come in great numbers.