Description in English: http://denmark.dk/en/meet-the-danes/forest-preschools
And a small documentary: https://www.youtube.com/watch?v=Jkiij9dJfcw
An equally significant difference for me, coming from the UK, is that there are men working in childcare. My window overlooks a street where a lot of nursery and primary school groups walk past on their way to the park, and my guess is half the adults are men. I was 9 years old in England when I first had a male teacher.
I'm a bit biased, as I was in the scouts for 17 years... In Australia that was Joey Scouts, Cub Scouts, Scouts, Venturer Scouts and Rovers. Theres a group for basically every age.
I feel that years of predatory leaders may have irreversibly damaged the reputation of the organisation though.
https://nytimes.com/2017/05/18/t-magazine/germany-forest-kin...
I should also say that at the age of 4 kids are expected to go to kindergarden on their own.
The German Wikipedia entry for Waldkindergarten [1] says its originally from Scandinavia btw:
"Der Waldkindergarten oder Naturkindergarten ist eine Form des Kindergartens, die aus Skandinavien stammt. Im Waldkindergarten erfahren Kinder im Alter zwischen drei und sechs Jahren (teilweise bereits unter drei Jahren) Erziehung, Bildung und Betreuung. Die meisten Aktivitäten finden außerhalb fester Gebäude statt, meistens im Wald."
http://www.ardmediathek.de/tv/Landesschau-Baden-Württemberg/...
The video speaks for itself: It shows a day in the Waldkindergarten of the Sonnenkinder, the 'sun children'. A woman from Canada has her son for the second day there. Another father reports that his son made problems at home and here is busy at any weather. When every child arrived, they walk 20 minutes together to the Waldtheater - the Forest Theater - the green living room. The first group made fire, already - a daily ritual. They also get something to do with various tools. One of the youngest is 2 y 9m and has somebody looking after him. The small children see it as a magical place. It's not allowed to harm the nature. At the end of the day every child has made its own personal experience, they walk back together and are looking forward to the next day in the forest.