We're going on a cruise that stops in Bergen. We're thinking of doing the Flam train, but because we have to get back and forth from Bergen, we would be essentially doing a round trip instead of a more classic Norway in a Nutshell kind of itinerary. So, we'd take a train from Bergen to Myrdal, and then do a round trip on the Flam train, having lunch in Flam. And then back to Bergen.

My questions -- is it worth it? It looks as though the Flam train is spectacular but what about the Bergen to Myrdal train? Would taking it as a round trip be too much? Etc.? There's plenty to do in Bergen instead, but I love me some trains so I'm sort of looking for a reason to do it.