Every parish church in the Region of Murcia has copies of a document entitled "Solicitud de Credencial del Peregrino", so one option is to go to one of these churches and pick one up.
Once the document is filled in it will be stamped by the parish priest so that you can take it to the headquarters of the
Diocese of Cartagena (in Murcia). It should be handed in to the "Secretaría General" of the Diocese, where the Credencial will be issued in exchange for a donation of 2 euros, which will be donated to charities in Caravaca.
If a group or parish church wishes to request the Credencial for all the members of the group, a copy of the application form must be completed for each applicant. Groups or churches located outside the Region of Murcia can contact the Secretaría General del Obispado directly by email at
secretariageneral@diocesisdecartagena.org or by telephone on (+34) 968 221 371.