There are three main parts of the ad limina visit:
- The pilgrimage to, and veneration of, the tombs of the Apostles Peter and PaulThe bishops of England & Wales are in Rome for their five-yearly visit at present. Please keep them in your prayers.
- A personal meeting with the Holy Father, Pope Benedict XVI
- Meeting and conversations with the various departments of the Roman Curia (the administrative offices of the Holy See)
You can read more about this here, and find the full text of the Pope's address to the bishops either from the page the previous link takes you to, or here.