Tuscany: Siena to Rome

Depart from the magnificent Piazza del Campo and descend into the Val d'Arbia, gentle rolling hills marking the start of the Crete Senesi.

Through the heart of the Crete Senesi, an otherworldly landscape of clay hills and cypress-lined ridges.

Enter the Val d'Orcia UNESCO World Heritage landscape, passing Monte Oliveto Maggiore monastery.

A spectacular day across the Val d'Orcia, with an optional detour to the Bagni Vignoni thermal pools before climbing to Radicofani.

Descend from the fortress town and cross into Lazio at Ponte a Rigo, entering the Lazio region at Acquapendente.

Arrive at the shores of Lago di Bolsena, Italy's largest volcanic lake, walking through ancient chestnut woods.

Through the volcanic plateau to Viterbo, the 'City of Popes', with its remarkably intact medieval quarter.

Rest day option, or walk south through the Cimini Hills and chestnut forest to Vetralla.

Sutri has welcomed pilgrims since Roman times; visit the remarkable Etruscan amphitheatre and the ancient Mithraeum church.

Through the medieval Via Cassia and the Parco di Veio nature reserve.

The suburbs of Rome begin to appear; walk through the historic town of La Storta where Ignatius of Loyola had his famous vision.

Enter Rome via the ancient Ponte Milvio, crossing the Tiber on the same bridge where Constantine saw his vision before the Battle.

The culmination: walk the final kilometres to St Peter's Square and embrace the ancient custom of pilgrims who have made this journey for 1,000 years.

Collect your Testimonium certificate, attend an optional papal audience, and celebrate your achievement at the farewell dinner.