Salzburg

Easy days out from Salzburg:
Hohenwerfen Fortress / Falcon show.
Werfen Ice Caves
Spend a day cruising the Wolfangsee, visiting the nices villages and towns around it... St. Gilgen, St. Wolfgang, Strobl.
Hallein, Austria Salt Mine
Luge rides (Sommerrodelbahns)
Konigssee
Cable car trips... St. Gilgen, Berchtesgaden, Jennerbahn by Konigssee.
Mountain cog train trip... St. Wolfgang.
Hallstatt

Paul

Check these sites for suggestions

http://www.bigboytravel.com/europe/austria/salzburg/suggested-itineraries/

http://www.visitacity.com/en/salzburg

I don't see music on your agenda. As the birthplace of Mozart (you'll see memorabilia everywhere) you should fit in a concert somewhere in there. Sound-of-music tour doesn't count.

When I was in Salzberg I went to the marionette theater one evening. It was very interesting and fun. It was a calssical opera but there were english subtitles. I especially enjoyed when the puppeteers looked through the stage opening and you realized how small the puppets really were.

You can also take the funicular to the castle.

You have more time than the usual traveler in Salzburg. Congratulations! It and the area and around it are fabulous. I agree with the above recommendations (except the Jennerbahn at Königssee is closed until early 2018 for renovations). A few of my own comments related to kids in Salzburg:

1. The Salzburg Marionette Theater is quite impressive. I saw Snow White and the Seven Dwarves (in German) there a couple of years ago as a matinee production. There were basic English subtitles flashed on walls on either side of the stage to help English speakers follow along; I was in row 5 and could read them fairly comfortably -- they would have been hard to read any closer to the stage). Matinees last about an hour and are obviously cheaper than the full evening shows. The Sound of Music is in the evening rotation, is performed in English, and lasts about 1 hr 45 min.

2. Mirabell Gardens is great. Don't miss the Dwarf Garden. Search for the dwarf from SOM!

3. If you happen to be in town at the right time, you can attend one of the Kinderfestspiele family concerts.

4. If you go to Eagle's Nest, the views are great... on a day with good weather. I don't now how great the museum part of the documentation center is for a grade schooler, but I would think the underground bunkers that can be entered through the Documentation Center would be pretty cool for him/her. You can do this on your own or you could do a tour with Eagle's Nest Historical Tours to contextualize what you are seeing. They have a well-reviewed, history-intensive 4-hour group tour (minimum age 8 years, RS-approved); a friend and I did the History Buff 8-hour private tour with them, which was awesome for history-buff adults, but way too long for a grade schooler. They also offer a 4-hour private tour. The meeting location is just steps away from the Berchtesgaden train/bus station.

A guide to kid activities in Salzburg written by locals

A blogger compiles 7 fun things for kids to do in and around Salzburg (with pictures!)

A trip report from a mother who took her 8-year-old to Salzburg

A recent thread on things to do in Salzburg with kids

If you want to go to a well-off-the-beaten-tourist-path place that I think a grade schooler would like and that will have zero other tourists...

The Stadtbibliothek Salzburg is very cool for those who like libraries. The architecture is awesome and reminiscent of a dinosaur; the carpet is shockingly red; and there is a Greg's Tagebuch stand up in the children's section to connect Austria to home for a grade schooler (these are web pictures, not my pictures). I'm not sure if the children's section has English books, but I think they probably do. If not, you could look through German picture books and try to figure them out!

The top floor used to be a sports bar, but was taken over by the library and turned into a cafe and reading room called the Panoramabar. It has very nice views of Salzburg, the surrounding mountains, and the fortress (far in the distance). To get to the Panoramabar from the main part of the library, you take a diagonally-moving elevator, which was a new experience for me. The cafe is a good place for a late breakfast or a snack (open 10:00-18:00 Mon/Thurs/Fri; 15:00-19:00 Tues/Wed; 10:00-15:00 Sat).

The servers make the Panoramabar even more special; they are all adults with some degree of intellectual disability/learning difficulties; these employees also help in the kitchen. That means the server's response to "Sprechen Sie Englisch?" will most likely be "Nein." So, you need to be able to do some basic ordering in German ("Ich hätte gern..." or "Ich möchte bitte..."). Oh yeah, the menu also only comes in German, so if you don't know any German, you may need a translation app on your phone to decipher the menu.

The library is about a 30-min walk from the old town; walk along the river towards the main town, hang a left on Ignaz-Harrer-Straße; take your 6th right onto Hüttenbergstraße and go about a block. You'll see the back side (aka the cool side) of the library from there. Walk around to the front of the building to enter. There is an enormous grocery/"super" store across the street from the library that is also fun to wander.

if you walk along the old-town-side of the river to get to the library, there is a playground at about the half-way point of the walk; the return walk offers stunningly gorgeous views of Salzburg that most tourists never see because they never leave the Altstadt. I'm sure you can get to the library by public transportation, too, if you would rather go that way.

also 'perhaps' hanger 7 ( red bull hanger) at the airport, it was free to get in , when we were there. ( nice toilets)