The Sunken Bell Tower of Lake Resia: The Alps' Strangest Morning

You leave Nauders in grey early light, climb for a short while through larch and scrub pine, and cross without much ceremony from Austria into Italy — no barrier, no passport check, just a sign and a change in the colour of the road markings. A few minutes later the trees fall away, the valley opens, and there it is: a church tower standing alone in open water, with nothing around it but lake and mountain and sky. No village, no shoreline path leading out to it, no visible reason for it to be there at all. It looks less like a ruin than like something that was simply forgotten when the water came in — which, it turns out, is close to the truth.

The morning the lake stops you

Most Alpine landmarks make their case with height or difficulty — a famous pass, a long climb, a summit board you can photograph yourself beside. Lake Resia does something different. It is flat, it is early in the day, and there is nothing technical about riding past it. What stops riders on this stage of the Trans Alp Gravel crossing is simpler and stranger: the realisation that the tower in front of you used to be the middle of a working village, and that the village is still down there, under the water you’re riding alongside.

Our own route notes call it plainly: “the Reschensee and its sunken bell tower, then long alpine descents.” That’s the whole character of the morning in one line — a landmark that asks you to stop and think, immediately followed by a day that keeps climbing.

Where day four sits in the crossing

The Trans Alp Gravel runs eight days from Füssen in Bavaria to Riva del Garda on Lake Garda, 380–440 km and 8,000–9,200 m of climbing across five riding stages with a rest day in the middle. By the time you reach Lake Resia you have three days of the crossing behind you:

• Day 2 — Füssen to Imst, Austria (78 km, 1,700 m). Cycle paths, forest roads and quiet asphalt into the alpine rhythm.
• Day 3 — Imst to Nauders, Austria (75 km, 1,980 m). Valley floors and alpine plateaux, building to the three-country corner of Austria, Switzerland and Italy.
• Day 4 — Nauders, Austria to Merano, Italy. Adventure 90 km and 1,000 m; Explorer 125 km and 2,200 m. The day opens with the crossing into Italy and the view over Reschensee, then drops into South Tyrol’s Vinschgau valley. The Explorer route adds the Stelvio Pass before the road rolls on into Merano.

So the lake isn’t a detour or a special extra — it’s simply what the morning of day four looks like, on both the Adventure and Explorer options. Whichever route you take that day, you ride past it before the two options diverge later in the stage. What comes after differs sharply: the Adventure route stays lower and reaches Merano by early afternoon, while the Explorer route turns the day into one of the crossing’s two biggest, with the Stelvio’s 2,758-metre summit still to come. We cover that climb and the terrain around it properly in our guide to the Stelvio Pass; this piece is about the stranger, quieter landmark that opens the same day.

The village that went under

Lake Resia — Reschensee in German, Lago di Resia in Italian, the names shifting with the language of whichever side of the valley you’re standing on — is not a natural lake. It was created in 1950, when a hydroelectric scheme dammed the valley and merged two smaller existing lakes into one much larger reservoir. The water that rose that year covered roads, farmland and most of the village of Curon Venosta, known in German as Graun im Vinschgau — a community that had stood in that valley for centuries.

The village’s parish church, a 14th-century building at the heart of the old settlement, was largely demolished as part of the project. Its bell tower, though, was left standing. Whether that was a deliberate decision to leave one visible marker of what had been there, or simply that the tower proved more trouble to remove than to leave, the result is the same: of an entire drowned village, the one thing still above the surface is this single tower, rising straight out of still water with the mountains behind it.

It is, by any measure, an odd thing to ride past on a bike holiday. Most Alpine landmarks are things people built to be seen — a pass road, a mountain hotel, a monument. This one is the opposite: the last visible fragment of something that was meant to disappear.

The bells nobody can prove they heard

Ask anyone in the valley about the tower and you’ll likely hear the same story, told with varying degrees of seriousness: that on certain still nights, the church bells can still be heard ringing beneath the water. It’s a good story, and it’s told often enough that it’s worth repeating here — but it’s folklore, not a documented phenomenon, and it’s worth being straightforward about what’s actually known. The real bells were taken down and removed before the valley was flooded, which is itself a detail that undercuts the legend a little and makes it more interesting: the sound people imagine hearing has, as far as the historical record goes, no bells left to make it.

None of which stops the tower from being genuinely eerie in the right light — early morning, low mist on the water, the peaks still holding shadow. It’s one of the few points on the whole crossing where riders who otherwise talk through a stage tend to go quiet for a few hundred metres.

What the rest of day four asks of you

The lake sits early in a day that then does real work. Past Reschensee, the road descends into the Vinschgau, the long valley that carries the route south through South Tyrol — orchards on the lower slopes, forestry roads and waterway paths (the old Waale irrigation channels) holding a contour line above the valley floor. Riders on the Adventure route continue down to Merano with around 1,000 m of climbing in the day; riders on the Explorer route instead turn off later in the stage for the Stelvio Pass, adding roughly 1,200 m more and a genuinely big mountain day before rolling into Merano for the rest day that follows.

Either way, the morning at the lake is a calm note before the day’s real effort — which is, if anything, part of why it lands. You’re not tired yet. You have the attention to spare for it.

Weather on this stage can shift fast: the crossing’s own guidance notes temperatures swinging from around 5°C to 25°C in a single day between valley floor and high ground, so a packable waterproof, arm warmers and a light thermal are worth carrying even on a morning that starts clear at the lake. We go into the kit question properly in our guide to packing for the Alps.

Riding it supported

A four-country crossing with a morning like this one in the middle of it is not something you want to be navigating cold, on your own, with a map in a plastic bag. On the Trans Alp Gravel, day four — like every day of the week — comes with a guide who knows exactly where the lake road turns and where the Stelvio turn-off is, or with the full GPS route loaded for Garmin, Wahoo or Komoot if you’d rather ride it at your own pace. Most riders mix the two over the week. Either way, the support vehicle follows the route, your main bag is already on its way to that night’s hotel, and a lunch stop meets the group most days with water and a free refill of PurePower energy drink.

That’s the shape of the whole crossing: seven hotel nights from Füssen to Riva del Garda, seven breakfasts and six dinners, a genuine rest day in Merano the day after Lake Resia, and a support van carrying spares, tools and a spare bike the whole way. Our how it works page sets out exactly what that means day to day, and the tour levels page lays out the Adventure and Explorer options in full if you’re weighing which one suits day four.

Ride past it yourself

The Trans Alp runs from €2,695, with 2027 departures on 26 June – 3 July, 17–24 July and 21–28 August. Lake Resia and its tower open day four of the crossing, on both the Adventure and Explorer routes — a quiet, strange hour before the terrain gets serious again, on an Alps cycling holiday that also takes in the Stelvio, a rest day in Merano, and a finish on the shore of Lake Garda. Full details, the complete day-by-day, and booking are on the Trans Alp Gravel tour page; our guide to hotel-to-hotel riding across the Alps covers the rest of the week’s rhythm.