Passau has a population of around 50,000, and an additional 8,000 when university is active. The city is situated at the point where the river Inn and the river Ilz meet the Danube (Donau), and therefore is often called the "Three River City" (Dreiflüssestadt). It is approx. 2,000 km (1,200 mi) upstream from the estuary of the Danube, at the Austrian border, and enjoys a small but thriving local tourist trade.

The area of Passau was first settled by the Celts, who were living in southern Bavaria ages before the Romans came and founded a fortress here because of the excellent strategic position of the peninsula of Passau. Later on, the fortress grew and Passau became a real city. Much of the money in the city was made from the salt trade with nearby Bohemia (in the present-day Czech Republic), with the salt coming from Bad Reichenhall near Salzburg. In the Middle Ages, Passau's Saint Stephen's Cathedral was the head of the regional church district, which extended all the way to Hungary. Most of the old buildings have survived to this day and are still in active use.

Like much of Bavaria, it's also predominantly Catholic. If you look very closely, however, you can spot Protestant churches.

Most tourists arriving in Passau are on river cruises along the Danube, but there are also many buses that arrive here from all over Germany and Austria. Because Passau is not far from the Czech Republic and Austria, there are many Austrians and Czechs here to work or shop. Although most tourists are native German speakers, you will get around town without much of a problem with only English, given the large number of students.

48°34′42″N 13°28′1″E

Map of Passau

Passau is a little spread out, but most places you will want to see are within walking distance, and buses run frequently (until 23:00) and are fairly cheap. On the other hand, if you walk 20 min from the city center in the right direction you are in Austria. You can catch taxis, but they can be a little pricey.

• 48.5773613.470781 Fortress Veste Oberhaus (Veste Oberhaus), Oberhaus 125, ☏ +49 851 396800, oberhausmuseum@passau.de. Mar-Nov M-F 09:00-17:00 & Sa Su 10:00-18:00. The fortress was built in 1219 by Passau's Prince-Bishops in order to control commerce across the rivers. During the Napoleonic Wars the castle was one of the strongholds against the Austrians (Bavaria sided with Napoleon at the beginning of the war). Due to several changes over the centuries today's castle consists of gothic, renaissance and baroque parts. Today the fortress houses a museum focussing on the history of Passau and its surroundings. It also offers one of the best views over the city and the confluence of the rivers. Adult €5, concession €4.  
• 48.5749613.468322 ^{[dead link]} Glass Museum (Glasmuseum), Schrottgasse 4, ☏ +49 851 35071, info@wilder-mann.com. 13:00-17:00. The museum focuses on the most important era of glass manufacturing from 1650-1950 with exhibits from Baroque, Rococo, Art Noveau, Art Deco, and Modernism. Friedrich Dürrenmatt once called it the world's most beautiful glass house. Adult €7, concession €5.  
• 48.5890513.462143 Mediaeval Pillory (Pranger), Marktplatz (Hals). At the market place of the Hals district of Passau, a little outside of town, there is a reproduced pillory, a mediaeval form of punishment in which people were exhibited, secured by their hands and neck, to be publicly humiliated and taunted by passers-by. 
• 48.5747513.46884 Old City Hall (Altes Rathaus), Bahnhofstraße 28, ☏ +49 851 955980, tourist-info@passau.de. Mar-Oct: M-F 09:00-17:00, Sa Su 10:30-15:30; Nov-Feb: M-F 09:00-16:00, Sa 10:30-15:30. The Old Town Hall was completed 1405 in Venetian style and has ever since kept its design. The interior is designed in a baroque style. It still houses parts of the city administration.  
• 48.5737113.469825 St. Michael's Church (Jesuitenkirche St. Michael), Schustergasse, ☏ +49 851 955980, tourist-info@passau.de. Mar-Sep: M-F 09:00-17:00, Sa Su 10:30-15:30; Oct-Feb: M-Th 9:00-17:00, F 09:00-16:00, Sa 10:30-15:30. This baroque church on the river banks gives Passau its typical looks of an Italian town. The church was completed in 1678 and is one of the main centres of the Jesuits in the region. free.  
• 48.5742313.465416 St. Stephen's Cathedral, Residenzplatz 8, ☏ +49 851 3930. 07:00-18:00. The cathedral is a baroque building, finished in 1688, but the earliest church on the site was already mentioned in 450. It is the center of the Bishopric of Passau, which during the Holy Roman Empire extended as far as Hungary and was the Empire's largest diocese. St. Stephen's is one of the largest baroque cathedrals north of the Alps and has the biggest cathedral organ in the world. From May to October there are organ recital every day (besides Sunday) at noon and evening concerts every Thursday at 19:30. free.  
• 48.5737413.476677 Three Rivers Confulence Point (Dreiflüsseeck), Ortsspitze. At the Ortsspitze ("Tip of the Town") at the eastern end of the old town you have the view of the point of confluence of the three rivers, Danube, Inn, and Ilz. 
• ^{[dead link]} Mariahilf Monastery. (updated Apr 2018)

• 48.55813.41281 Beer festival (Maidult und Herbstdult). A week in May & Sep. Passau has two beer festivals, one in May and one in September, that last one week each. 
• 48.571713.48192 Danube Bike Path (EV6) (Donauradweg). The Danube Bike Path is a European long-distance cycle route, that begins further upstream the river, but the section between Passau and Vienna is the most travelled by far. The surface and signage along the route is very good and there are many places that invite the cyclist to stop and have a wine or beer. 
• Ilztalbahn. mid-May to mid-October. Scenic trains from Passau to Freyung in the Bavarian Forest (updated Apr 2018)

• 48.56813.45261 University of Passau (Universität Passau), Innstraße 41, ☏ +49 851 5090, info@uni-passau.de. The University of Passau is well known in Germany for its law degree and the international business programmes. There are German as a foreign language courses at the university, as well as other external pay-for courses. Studying at a university in general is free in Germany - that includes all foreigners. 

There's a bunch of tourist shops around Passau, so you can easily find some original Bavarian Lederhosn or a Bavarian hat to take home as a souvenir.

In and around the central shopping mall as well as in close by Bahnhofstraße you will find the typical highstreet shops like H&M, Orsay, New Yorker and C&A, several shoe shops (Sutor, Görtz 17, Roland), home decoration stores (Butlers, Depot) as well as several book shops. On the first floor of the book shop Pustet there's also a nice little cafe where you can chill out and enjoy a Cappuccino whilst having a read.

Passau has quite a lot of restaurants in the city and the competition means that you are unlikely to get a bad meal. You can regularly find some good deals (like pizza or pasta and a glass of wine for €5.50). It is, however, much more expensive than eating at home, so locals don't eat out every night.

The breweries and pubs often serve food as well as beer. See the Drink section below.

Passau has 5 breweries. Every pub or restaurant seems to be associated with one of them. The beer is delicious and cheap.

Like the rest of Germany, buying alcohol out is more expensive than buying it at the supermarket. Service has a big price tag here. The student pubs are almost as cheap as a supermarket, though.

There are a few beer gardens in Passau, and a couple that pass the "real beer garden test". That being, you can bring your own food to them regardless of whether they sell food themselves or not. Beer gardens developed because breweries used to plant trees atop their underground cellars (mostly laying a bit outside of the city) to keep them cool, and the result was a really nice atmosphere to relax with a beer in hand. Beer gardens tend to open in the spring and close in the fall as the weather cools again.

• The Hacklberg Brewery. It has a nice restaurant full of classic Bavarian dishes that will fatten you up in no time. It also has a large beer garden in the warmer months. To get there you have to cross the Danube and turn left, staying on the second street closest to the Danube. Seven beer taps. 

Thursdays, Fridays and Saturdays are the nightlife nights. On Thursdays, you have bar-trivia at the Irish Pub "Shamrock" where your group can win €60 (or up to €120 with the jackpot). Questions are in both English and German. "Shamrock" is owned by a Welshman, and the employees all speak English as do most of the clientele. The barmen and waitresses come from all across Europe (France, USA, Australia, Poland) and make fascinating drinking companions.

Close to the Shamrock there's Hossi's Bar, which is a popular small cocktail bar and Cubana, which is always busy on weekends.

Some more drinking spots can be found in the part of town known as Innstadt (an old, picturesque part of town across the river Inn): Colors, Joe's Garage and Bluenotes.

The oldest and probably still most popular club in town is Camera, which is located very centrally in a basement close to McDonald's.

• 48.575413.468262 Passau Tourist Information main office, Rathausplatz 3, ☏ +49 851 955980, tourist-info@passau.de. Mar-Sep: M-F 08:30-18:00, Sa Su 09:00-16:00; Oct-Feb: M-Th 08:30-17:00, F 08:30-16:00, Sa Su 10:00-15:00. 
• 48.5745713.451053 Passau Tourist Information station office, Bahnhofstraße 36, ☏ +49 851 955980, tourist-info@passau.de. Mar-Sep: M-F 09:00-17:00, Sa Su 10:30-15:30; Oct-Feb: M-Th 09:00-17:00, F 09:00-16:00, Sa 10:30-15:30. 

German trains regularly go through Passau to/from Munich, Regensburg and Austria - there is no shortage of them. Especially if you want to go to Munich, it pays to be at the station a little earlier, as there are usually people looking for travellers who want to share the cost of a Bayern-Ticket. It costs €23 for one person and €5 for every additional person for a party up to five, but is not valid on ICE and IC high-speed trains.

• Scharding. Small baroque town only 15 minutes away by train on the banks of the river Inn. Or you can rent a bike and cycle there for the day along the river. (updated Jun 2023)
• Altötting. The small city to the south-west of Passau is one of the most important destinations of Catholic pilgrimage in Europe. (updated Jun 2023)
• Linz. Austria's third largest city lacks the picturesque charm of Salzburg or the imperial grandeur of Vienna, but has a number of draws. 
• Munich (München). The capital of Bavaria is the state's only city of over 1,000,000. It is best known for the annual Oktoberfest, but is foremost a city of culture and arts. It's located to the south-west of Passau and a 2-hour train ride away. (updated Jun 2023)
• Regensburg. A beautiful mediaeval city at the shores of the river Danube. Its historical city center is a UNESCO World Heritage Site in its entirety. Only an hour away on the ICE train. 
• Vienna (Wien). The capital of Austria is a 2½- to 3-hour train ride from Passau. 
• Danube. Cruises down the Danube often begin in Passau, as does the Donausteig long-distance walking trail. The Danube Cycleway and the Tour International Danubien (by canoe or kayak) pass through the town. 

Nuremberg ← Regensburg ←	W  E	→ Linz → Vienna
Czech Republic ← Bavarian Forest ←	W  E	→ Altötting
Frankfurt ← Regensburg ←	W  E	→ Linz → Vienna
Munich ← Landshut ←	W  E	→ End
Bavarian Forest ←	N  S	→ End