Each guide is built around a booking decision — choosing the fjord, the rail loop, and the scenic-road-or-ferry call — not a list of sights.
The two fjords reward different trips. Sognefjord is a wide rail, boat, and village network you can travel without a car; Geirangerfjord is a compact scenic-road and ferry fjord reached mostly from Ålesund.
Do you want a fjord you can reach and move through by train and boat, or a compact fjord built around a car, a ferry, and a seasonal scenic road?
A no-car Sognefjord loop is one of the strongest fjord trips in Norway, but it lives or dies on connections. The plan works when the Bergensbanen, Flåm Railway, and Nærøyfjord cruise line up — and fails quietly when they do not.
Do your train, railway, and fjord-cruise connections actually meet on the travel day, or only on the map?
Geirangerfjord has two signature approaches — the Geiranger-Trollstigen scenic route and the Geiranger-Hellesylt ferry. The scenic road is seasonal and closes at short notice, so the access choice is mostly a season and weather decision.
Is the Geiranger-Trollstigen scenic route open and safe on your dates, or should the day lean on the ferry and a year-round approach instead?