Ship-Swaps, Buses, Canceled Cruises: Low Water Levels in Danube River Forcing Creativity

Along with a historic heatwave in Europe, the rivers on the continent are also dropping dangerously low.

The Danube River is always active this time of year with around 150 river ships sailing up and down these waters throughout the course of summer.

But due to some of the lowest water levels on record, cruise lines are being forced to cancel or alter itineraries.

How bad is it? According to the National Water Management Authority of Hungary, the Danube’s water level in Budapest has dropped within just 8 centimeters (about 3 inches) of its historic, all-time record low.

As you can imagine, the water level drop has caused a lot of problems for river ship operators in the region.

Laszlo Somodi, Chief Executive of the Hungarian sightseeing operator MAHART-PassNave, said it’s been an ongoing trend and some vessels are simply waiting:

“River cruise vessels are currently still able to enter Hungary, but several ships are stranded or waiting in ports because of the low water levels.”

Somodi added that the drop has forced his company to suspend sightseeing tours north of Budapest. This led to an 18% drop in bookings for the month of July.

Ship Swaps, Busing, and Cancellations

So, what does this mean for mainstream river cruisers?

For some, it means a vacation that looks very different from the brochure.  I’ve sailed the Danube River before and saw firsthand how sometimes low water levels mean that passengers have to swap ships for a vessel on the other side of a lock.

You simply pack up your belongings, hop on a bus to the other vessel, and continue on your journey.

It’s not ideal, but it happens and cruise operators are ready for this.

But for others, it means no cruise at all.

Let’s look at how the major river cruise lines are handling the crisis on their active July 2026 sailings.

Avalon Waterways

Avalon Waterways has been forced to make the tough call to cancel a number of upcoming departures on both the Danube and the Rhine.

In a statement shared with Travel Market Report, the cruise line explained:

“The nature of rivers is to ebb and flow, and this season, lower than average water levels on portions of the Rhine and Danube Rivers have impacted select sailings.”

The cruise line confirmed that Avalon Impression has been physically unable to navigate past the Koblenz area. And with weather forecasts showing no signs of relief any time soon, Avalon made “the difficult decision to cancel a small number of upcoming departures” rather than force cruisers to enjoy much of the trip in buses.

A reader reached out to Cruise Fever to report that Avalon Tranquillity II was also having trouble navigating the Danube, and passengers cruising East could only make it to Vienna before needing to be bused to Budapest. The cruise traveler stated that they never had to touch their luggage as it was all transferred for them.  Avalon also provided “generous onboard credit for each guest” on this sailing.

For several other Danube itineraries that are not being canceled, Avalon is using motorcoaches to get passengers to their destinations.

Guests on some July departures have had their embarkation points moved (such as boarding in Passau instead of Nuremberg) with guests bused across parts of the river that were impassable due to the low water levels.

AmaWaterways

AmaWaterways is doing everything it can to keep its scheduled July cruises running, but they are relying on “ship swaps” and buses to bypass the problem areas of the Danube River.

On a recent July 12 sailing, guests on the double-wide AmaMagna found themselves unable to sail directly into Budapest. Instead, the company adjusted plans by putting guests in Budapest hotels and busing them out to meet the ship further upriver.

Cruisers on the AmaSonata’s early July departures also reported a few changes, including embarkation points shifted from Nuremberg to Vilshofen by way of coach. They also had their time in Budapest cut short so the ship could set sail from the area before water levels fell too low to navigate.

Scenic and Viking

Other mainstream river ship cruise lines are closely monitoring the situation.

Scenic issued a travel alert stating that low water is mainly causing problems for the upper Danube, particularly around Budapest and the stretch between Regensburg and Passau.

To minimize the impact, Scenic is preparing “ship-swaps”. This is what I mentioned earlier where passengers pack their bags, get on a motorcoach, drive past a dry bottleneck, and board an identical sister ship waiting on the other side.

Viking has also begun notifying passengers on upcoming mid-to-late July Danube itineraries to expect last-minute route modifications, altered embarkation ports, or motorcoach transfers as they navigate the low water levels.

Timing Water Levels

Unlike ocean cruise ships, river boats don’t have tides to help them float. Instead, they rely on a network of dams, locks, and reservoir releases managed by European water authorities.

When water levels drop, river captains have to coordinate with these authorities down to the hour. So, timing plays a crucial role in all of this.

If a dam upstream holds back water, or if a lock’s chamber doesn’t have enough depth, a river ship can find itself stuck or grounded.

Is Relief on the Way?

The big question now is “When will the river bounce back?”.

There is a glimmer of hope on the horizon. Weather forecasts suggest a weather pattern next week that could bring much-needed rain to Central Europe.

If those storms follow the forecast, water levels could begin to rise again and allow stranded vessels to resume their normal schedules.

Until then, if you have a Danube cruise scheduled in the next 7 to 10 days, expect the unexpected. Keep in close contact with your travel advisor, download your cruise line’s app for real-time notifications, and pack some extra patience alongside your walking shoes.