Where was Summer Interlude filmed?

1951 film by Ingmar Bergman

Summer Interlude (1951) was filmed in Solna Municipality, Saltsjöbaden, Dalarö, Blasieholmen, Filmstaden, Rosenön and 1 more place, 7 places named in its Wikipedia article, in Sweden. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data