Begin at Passau Hauptbahnhof, in Bahnhofsvorstadt, at around 11:40. Allow roughly 30 minutes to collect luggage, find the taxi rank, and orient yourself before heading toward the ship terminal; the walk into the Old Town takes about 15–20 minutes, while a taxi is easier with bags. Continue to St. Stephen’s Cathedral for about 45 minutes. Its late-Baroque interior is one of Passau’s highlights, and if an organ recital is scheduled, it is worth timing your visit around it; otherwise, check the cathedral’s noticeboard, as access can occasionally be limited by services. Admission to the church is generally free, with organ concerts ticketed separately.
Take a relaxed break at Café Simon, a convenient Old Town stop for pastries, coffee, or a light lunch, budgeting approximately €10–20 per person. From there, make your way uphill to Veste Oberhaus—a taxi is the practical choice with luggage, though confident walkers can climb via the steep paths from the riverfront. Give yourself around 1½ hours for the fortress grounds and lookout terraces, which offer the best broad view of Passau and the meeting of the Danube, Inn, and Ilz. Check the fortress museum’s seasonal hours before entering; the exterior viewpoints are the main reward even if you are keeping the visit short.
Return to the Lindaupark Passau ship-terminal area for check-in and embarkation, allowing a full 1–2 hours before the scheduled departure. Keep passports, booking documents, and any required boarding information accessible rather than packed in your main luggage. The terminal area is close to the Danube but can involve walking between coach drop-off points and the actual ship, so arrive early and follow the cruise operator’s signs. Once checked in, settle aboard rather than trying to squeeze in another excursion—boarding procedures and luggage loading can take longer than expected on a busy Saturday.
Start at the Donauschiffahrt Wurm & Noé landing stages on the Passau waterfront, allowing time to check the day’s sailing board and board at least 15 minutes before departure. A daytime cruise usually takes about two hours and is the easiest way to appreciate Passau’s position on the Danube, Inn, and Ilz without rushing between viewpoints. Fares vary by route, but a standard sightseeing ticket is commonly around €15–25; bring a light layer, as the open deck can feel breezy even in August. Since this is a ship-tour day, confirm that the cruise fits around your main embarkation schedule rather than treating it as a fixed connection.
After returning to shore, cross toward Innstadt and follow the quieter Inn promenade for about an hour. This southern-bank walk gives you a different perspective on the Old Town and leads naturally toward the confluence; it is calmer than the central waterfront and good for a slow stroll after the cruise. From there, head back across the bridge or along the riverside into the Old Town for lunch at ScharfrichterHaus, an established cabaret venue and restaurant. Allow roughly €20–35 per person, and check the kitchen schedule before setting out—afternoon service can be limited. The walk from the Inn promenade is generally 15–20 minutes, depending on where you turn back.
Continue on foot through the Old Town to the Museum Moderner Kunst Wörlen, a compact stop that works well for about 90 minutes rather than requiring a full afternoon. Expect a modern-art collection in a historic setting; admission is typically in the low single digits to around €10, with reduced prices for students and seniors. Check the museum’s current Tuesday–Sunday opening hours before going, as smaller cultural institutions can have seasonal variations. Finish at Ortspitze, around 10–15 minutes away on foot, where the Danube, Inn, and Ilz meet. Stay for the changing light over the water—late afternoon is especially pleasant—and use the riverside paths for an unhurried final walk back toward the waterfront.
After breakfast, head into Passau’s Old Town for a quieter final morning away from the main waterfront crowds. Begin at St. Paul’s Church, a compact but richly decorated baroque church on Rindermarkt. Allow about 45 minutes to look at the pale stucco interior and details around the high altar; services or parish events can occasionally limit access, so keep the visit flexible. From the central Old Town, it is an easy walk, and you will find the surrounding lanes especially pleasant before midday.
Continue to the Passau Glass Museum, housed in the historic Hotel Wilder Mann overlooking the river. The collection focuses on Bohemian glass and is best enjoyed slowly—allow around 1½ hours. Check the museum’s same-day opening hours before setting out, as seasonal schedules can vary; admission is generally in the mid-teens per adult. The building has several levels and stairs, so it is worth allowing extra time if you are carrying luggage or prefer a less hurried visit.
For lunch or a substantial coffee break, settle at Café Kowalski, a relaxed choice with views toward the Danube. Budget approximately €12–25 per person depending on whether you order a light meal, cake, or coffee. It is a good place to pause rather than rush straight through the afternoon, and outdoor tables are particularly appealing in August, though shaded indoor seating is more comfortable in the strongest midday sun. From the museum, the café is a short walk through the historic center.
After lunch, walk to Altes Rathaus to admire its riverside façade, clock tower, and painted details from outside; 30 minutes is enough for photographs and a look at the adjoining square. Then continue on foot through the quieter lanes toward Kloster Niedernburg, allowing about 45 minutes. This former convent area feels notably calmer than the central shopping streets, and the tomb of Blessed Gisela is the main point of interest. Dress respectfully and check the church or convent-area access on arrival, since quiet religious sites may close briefly outside services. From here, you are still close enough to walk back toward the ship area or station, while a taxi is the sensible choice if you are collecting luggage or departing Passau with bags.