My wife and I are going to be in Copenhagen for a week or so in mid July, and again at the end of September. If it can be feasibly done in 3 or 4 days, we'd like to get a taste of the Norwegian fjords. Are short fjord cruises/tours even available? We're both retired teachers, so cost is a consideration. If short cruises are available, what is the best jumping? Bergen? Some place else? Any recommendations re: tour companies?
You could do Norway in a Nutshell. Can be done in one long day from Bergen. Check out RS guidebook for all the details.
I did a Norway-Nutshell variant in May - Sognefjord in a Nutshell (fast ferry ("hurtigruten") through the Sognefjord; NiN offers cruises through adjacent, smaller fjords but is pretty much the same depending on how one customizes a tour). Both versions are customizable to an extent, including overnight stays and where to stay, and day-trip options. Worth doing at least one time no matter which version and how it's customized. I used Borton Overseas/Minneapolis to set up my trip but it's entirely arrangeable on one's own whether through https://www.norwaynutshell.com or putting it together through the various transportation modes and hotel websites.