Charles Kuonen Suspension Bridge

Listen first. Under your boots, the steel mesh gives a soft metallic hum with every step. The wind moves through the cables, and somewhere far below, water runs over loose rock. Look down through the grating and there is nothing solid between you and the ravine. Look up, and the high peaks of the Valais Alps fill the sky on both sides. You are standing on the Charles Kuonen Suspension Bridge, high above the Mattertal valley, near the village of Randa.

When this bridge opened in the summer of 2017, it was the longest pedestrian suspension bridge in the world. It runs for 494 metres in a single span. Since then, longer bridges have opened in other countries, and the record has moved on. But the numbers are only part of the story here. This crossing was not built as a thrill ride. It was built to solve a very old mountain problem: how to keep a path open on a slope that will not stay still.

The bridge is one link in the Europaweg, a high trail that runs along the eastern side of the valley between Grächen and Zermatt. Walkers use it over several days, sleeping in mountain huts along the way. The trail stays well above the valley floor, so the views are wide and open. But this height has a cost. The path crosses steep, broken ground, and in some places the mountain sheds rock onto it again and again.

The gully below you is called the Grabengufer. It is one of the most unstable stretches on the whole route. Rockfall here damaged an earlier, shorter bridge, and for a time the trail had to detour far down and back up again. That detour added hours to a long day of walking. The answer was this longer span. It reaches across the full width of the danger zone and keeps walkers well above the falling stone.

Now, take a moment to look at the bridge itself. The walkway is narrow — only wide enough for one person at a time in most places. When you meet someone coming the other way, you will both turn sideways and squeeze past. The deck is made of open steel grating, so light and air pass straight through. Tall mesh walls rise on each side. They feel reassuring, but they do not hide the drop at all.

Here is something many visitors do not expect. The bridge moves. It sways gently in the wind, and it bounces slightly when a group walks in step. This is normal. A suspension bridge is designed to flex, not to resist every force with rigid strength. The heavy cables carry the load down to anchors set deep into the rock at each end. If you stop in the middle and stand still, you can feel the whole structure breathing with the weather.

At its highest point, the deck hangs roughly eighty-five metres above the floor of the ravine. That is about the height of a twenty-five storey building. For many people, the strangest part is not the height. It is the length. Five hundred metres is a long time to walk with nothing under you but mesh. Halfway across, both ends can seem far away, and the mountain feels very large and very quiet.

The bridge carries the name of Charles Kuonen, whose family support helped make the project possible. Kuonen is a well-known family name in the Valais region. It is worth noticing that this crossing honours a private supporter, not a king or a general. Many small Alpine paths, huts and bridges exist because local families, communities and walking groups decided to pay for them. The mountains here are shared, and keeping them open is often a local effort.

Now turn your attention across the valley. The great wall of peaks on the far side includes the Weisshorn, one of the most elegant mountains in the Alps, with sharp ridges and a pointed white summit. Behind you, on your own side of the valley, the slopes climb toward the Dom, the highest mountain that stands entirely inside Switzerland. On a clear day, look south, up the valley toward Zermatt, and follow the line of the river into the distance.

Down on the valley floor, you can see Randa itself. It is a small village, but it knows the power of moving mountains very well. In 1991, a series of enormous rockslides came down above the village. The falling rock blocked the river and the railway, and it reshaped the slope. If you look at the hillside above Randa, you can still see the pale scar of bare rock. The landscape around you is young, active and constantly changing.

That history explains why engineers think so carefully about this valley. A path here cannot simply follow the easiest line. It must avoid gullies where stones fall, ledges that crack, and slopes that slide after heavy rain or snowmelt. This bridge is one answer to that challenge. Instead of cutting a path through dangerous ground, it simply lifts walkers over it. In a valley shaped by rockfall, flying over the problem was the safest choice.

Getting here takes effort, and that is part of the experience. From Randa, the climb is steep and steady, through larch and pine forest, with switchbacks that gain height quickly. Most walkers need a couple of hours to reach the bridge. Many continue along the Europaweg afterwards, while others return the same way. Either way, the bridge feels earned. You arrive with tired legs, and the long open span suddenly feels like a reward.

Before you step off, pause once more in the middle. Feel the cool air coming up out of the ravine. Listen to the cables, the wind and the distant water. Look at the pale scar above Randa, and at the white peaks across the valley. Then walk on slowly, one step at a time, and notice how the ground feels when it turns back into solid rock under your feet.