Salzburg suits families better than its opera-and-Mozart reputation suggests — the best things for children here involve getting soaked, climbing a hill or looking at animals, and most of them are within a bus ride of the old town.
Haus der Natur
Museumsplatz 5 in the old town, open daily 09:00–17:00 with last entry at 16:30. Over 7,000 square metres covering an aquarium, a reptile house, dinosaurs, a space hall and a full hands-on science centre; commentated animal feedings run Monday to Thursday. Adults €16, children 4–15 €10.50, two adults and two children €48.
Zoo Salzburg Hellbrunn
Hellbrunner Straße 60 in Anif, at the foot of the Hellbrunn cliff south of the city and open daily from 9am. Around 1,600 animals, from Alpine ibex on the rock faces to Grevy's zebras. Combine it with Hellbrunn — they are neighbours on the same bus route.
Hellbrunn trick fountains
Fürstenweg 37. A 17th-century prince-archbishop's joke garden, built 1613–1615, where hidden jets soak the guests on a guided circuit. Open daily from late March to 1 November, from 09:30 with closing between 17:30 and 19:00 depending on the month; last admission an hour before. Bring a change of clothes for small children.
Festung Hohensalzburg
Mönchsberg 34, open 365 days a year: 09:30–17:00 from October to April and 08:30–20:00 from May to September. The all-inclusive ticket with the funicular is €19.20 for adults and €7.30 for 6–14s; walking up the path instead brings it down to €14.50 and €5.60. Inside are the armoury, the marionette museum and the ramparts.
Spielzeug Museum
Bürgerspitalgasse 2, open Tuesday to Sunday 09:00–17:00 with last admission at 16:00. Aimed squarely at 0–10s: historic toys behind glass but large play areas, a slide and a Carrera track you can hire. Adults €5, children 6–15 €3, family ticket €10 — the cheapest indoor hour in Salzburg on a wet day.