I learned to ski (downhill) while living in Norway, which was terrifying as their mountains are the wrong shape for beginners. Watching people coming down the slope in bikinis or briefs or even naked was amazing - well if you don't fall over, you get very hot, so might as well get a good suntan. I recall one naked guy who obviously fancied himself, spraying people with snow as he came to a halt, and everyone in the cafe cheering when on the sixth time round he fell over.
Going cross-country skiing to get to the shops in winter was normal. In summer you'd see some people doing it with skis with wheels. Changing rooms in swimming pools, inclduing the naked saunas, were mixed, though sexes did tend to congregate at each end with families in the middle.
On the whole it's a law-abiding efficient society, except alcohol. With only one shop selling anything stronger than weak beer, for towns the size of say Brighton or Cambridge, smuggling alcohol was a national pastime. General costs were such that many people flew to the UK every few months to go shopping and would bring back as much booze as they could. Then at Customs you would declare two bottles of wine (minimum amount for paying duty), and if lucky, the guard would let you on through, or if not, confiscate a proportion of what you were bringing in, almost certainly never officially recorded.
Works parties and any official event would provide 'drunk buses' for getting everyone home after, which could be great if you lived early on the route, but could take 3 hours if you lived at the far end. Police would breathalyse everyone on a road on Sun and Mon mornings, and many people would be done for driving over the limit (usually still under the UK limit), and eventually have to serve 6 weeks in jail. Apparently people would take sunlamps in and claim they'd been on holiday, but everyone would know.
New Year's Eve was the event of the year, with huge meals, comedy and then fireworks which always looked especially good over the snow. I never understood that much of the comedy beyond "there was a Norwegian man (hero!), a Danish man (pisshead) and a Swedish man (stupid and sex-crazed) ...".
Krokan (chips of caramel) and cinnamon in everything was great. Re-using teabags in cafeterias and restaurants, not so. Decent food if somewhat limited fish-obsessed menu.
Wonderful country but so much rain (classic joke, tourist asks a boy in Bergen if it ever stops raining. 'I don't know, I'm only nine years old'). They deal with it well, nothing is stopped by rain, so it was odd returning to England and finding builders abandoning scaffolding or football matches being called off because of rain.
Very few flat areas where grass can grow, so playgrounds are tarmac or grit, including most football pitches. Not much diving in football matches! I'm told that the equivalent of planning permission is basically "You think you can build there? ha ha. Good luck."