The fens of eastern England are flat. Genuinely, unusually flat, mile after mile of low farmland under a huge sky. And rising out of all that flatness, visible from a great distance in every direction, sits Ely Cathedral. People have called it the Ship of the Fens for centuries, and the moment you see it floating above the level ground you understand exactly why. It looks like a great vessel anchored on the horizon. I have watched groups go quiet in the coach at that first sight, before we have even arrived.
Ely is, for my money, the most surprising of England’s great cathedrals, and its single most extraordinary feature is one that most people have never heard of until they stand beneath it. Let me tell you about the Octagon, the story of the place, and how to bring a group here.
The Island in the Marsh
Before the fens were drained, this was an island. Ely sat in the middle of a vast wetland of marsh and water, reachable only by boat or by hidden causeways, and its name comes from the eels that were once caught here in great numbers. That isolation shaped its history. It was a place set apart, defensible, and well suited to a community withdrawn from the world.
The Christian story begins with Etheldreda, an Anglo-Saxon queen and one of the most significant female saints of early English Christianity. In 673 she founded a monastery on the island of Ely. Etheldreda was, by all accounts, a woman of remarkable determination who chose the religious life over royal marriage, and her shrine made Ely a major pilgrimage destination for centuries. The cathedral that stands today grew from the community she began.
The present building was begun by the Normans after the Conquest. The long nave, with its rhythm of rounded Romanesque arches, dates from this period and is one of the finest Norman naves in England. Walking its length, you are moving through nearly a thousand years of continuous worship on the spot Etheldreda chose.
The Octagon: England’s Medieval Miracle
Now to the feature that sets Ely apart from every other cathedral in England.
In 1322 the original Norman central tower collapsed, crashing down into the heart of the church. It was a disaster. But what the builders did in response is one of the great achievements of medieval engineering and one of the most beautiful spaces in any English church. Rather than rebuilding a conventional square tower, they raised an octagon, an eight-sided lantern of stone and timber that spans the entire crossing.
The genius is in the lantern that crowns it. Above the stone octagon sits a vast timber structure, an eight-sided lantern tower of oak and lead, that floods the center of the cathedral with light from above. It was designed by the king’s carpenter, William Hurley, using enormous oak beams, some of them over twenty metres long, hauled from forests far away and lifted into place by means we still find astonishing. The whole thing weighs around four hundred tonnes and has hung suspended over the crossing for nearly seven hundred years.
When I bring a group into the cathedral, I do not point the Octagon out from a distance. I walk them in, position them directly beneath it, and tell them to look up. The effect of standing under that soaring lantern of stone and timber and light, knowing it was raised by hand in the 14th century after a catastrophe, never fails. It is the high point of the visit, and it is unlike anything else in England.
The Lady Chapel and the Scars of History
Beside the main building stands the Lady Chapel, the largest of its kind attached to any English cathedral. It is a wide, light-filled space, and its walls and niches were once filled with intricate carved figures and statues, among the richest decoration of any medieval English church.
Today most of those carvings are damaged, their heads and faces deliberately struck off. This is the work of the Reformation and the later Puritan iconoclasm of the 17th century, when religious images were destroyed across England. I do not skip this with groups, because the scars tell their own true story. The empty niches and broken figures are a record of how violently England’s religious life was contested. It is a harder, more honest part of the visit, and groups find it moving in a different way than the Octagon. The same building holds both the triumph of medieval faith and the wounds of religious conflict.
Oliver Cromwell himself has a direct link to Ely. He lived in the town for a decade and his former house still stands nearby, a reminder of how close this quiet fenland city sat to the great upheavals of English history.
How Groups Visit Ely
Ely Cathedral welcomes group pilgrimages and is well set up for them. Entry is by ticket, with group rates available, and the cathedral offers guided tours including a special tour up into the Octagon and lantern, which takes a small group up among the great oak beams for a close look at the medieval carpentry and a view out over the fens. That tower tour is a remarkable experience for those able to manage the climb.
I structure the main visit to build toward the Octagon. Begin at the west end and walk the full Norman nave, taking in the rhythm of the arches and the painted Victorian ceiling overhead. Stop beneath the Octagon and let the group look up in silence. Move on to the choir and the site of Etheldreda’s shrine, then to the Lady Chapel to see both its scale and its scars. There is a stained glass museum within the cathedral as well, the only one of its kind in the country, for groups with a particular interest.
A full visit runs around an hour and a half to two hours. The cathedral can arrange a chaplain or a short service for groups with notice, and the choir is one of the finest in England, so a group whose visit coincides with evensong is in for something special. The nave and main spaces are largely accessible on the level.
Practical Access for Group Leaders
Ely sits in Cambridgeshire in eastern England, a short distance north of Cambridge and around an hour and a half to two hours by road from London. Its proximity to Cambridge makes it an easy and natural pairing, and many groups visit both in a single day or split them across two. It also sits within reach of the wider East Anglia heritage country, including Walsingham and Norwich to the north.
The city of Ely itself is small and walkable, with the cathedral at its heart, cafés and a refectory for lunch, and parking nearby. The cathedral grounds and main interior are mostly level and accessible, with only the Octagon tower tour requiring a real climb.
Heritage Tours books the cathedral visit, arranges any guide, chaplain, or tower tour, and times Ely alongside Cambridge or the East Anglia sites so the day flows. When you bring a group of 15 or more, the group leader’s own place can be arranged free.
For where Ely fits in the wider picture, start with our guide to spiritual sites for faith travelers in England. It pairs naturally with Walsingham in the same eastern region, with St Albans Cathedral on the way north from London, and with the hidden heritage sites most groups never reach.
FAQ: Visiting Ely Cathedral
Why is Ely Cathedral called the Ship of the Fens?
The cathedral sits in the flat fenland of eastern England and rises high above the level landscape, visible for miles in every direction. From a distance it looks like a great ship anchored on the horizon, which is how it earned the name. Ely was once an actual island in a vast marsh before the fens were drained, which makes the image even more fitting.
What is the Octagon at Ely?
The Octagon is the cathedral’s central feature, built after the original Norman tower collapsed in 1322. Instead of a conventional square tower, the medieval builders raised an eight-sided stone lantern crowned with a vast timber structure of oak, designed by the king’s carpenter William Hurley. It floods the crossing with light from above and weighs around four hundred tonnes. It is regarded as one of the great achievements of medieval engineering and is unlike anything else in England.
Can a group climb the Octagon tower?
Yes. The cathedral offers a guided tower tour that takes a small group up into the Octagon and lantern, among the great medieval oak beams, with views out over the fens. It involves a climb and is not suitable for everyone, so it usually works as an option for a sub-group. The main cathedral, including the nave and the view up into the Octagon from below, is reachable on the level.
Who was Saint Etheldreda?
Etheldreda was an Anglo-Saxon queen who founded a monastery on the island of Ely in 673, choosing the religious life over royal marriage. She became one of the most important female saints of early English Christianity, and her shrine made Ely a major pilgrimage destination for centuries. The cathedral grew from the community she began.
Why are so many carvings in the Lady Chapel damaged?
The Lady Chapel was once filled with richly carved figures, most of which had their heads and faces struck off during the Reformation and the later Puritan iconoclasm of the 17th century, when religious images were destroyed across England. The empty niches and broken figures are left as they are, a true record of how violently England’s religious life was contested. Many groups find this part of the visit moving in its own way.
Ely surprises groups in the best way, a great ship of stone over the flat fens with a medieval miracle at its heart. If you are planning an England heritage journey through the east of the country, I would be glad to help you build Ely into it well. You can see how we structure these trips on our England heritage page or explore our group heritage tours.
Contact us whenever you are ready to start the conversation.