I am a middle-aged Mom traveling this August with my nearly 16-year-old son. I paid for the (nonrefundable) car rental reservation from Bergen in mid-August before realizing that we might be better off using public transportation. (We're spending a couple of days in Oslo before taking the train to Bergen.) For both of us, the main interest is the fjords - both viewing from above and having some type of experience on the water that we'd both enjoy and which would especially be appealing to a teen (kayak? Rib boat?) - so probably not a typical tour boat. We'd be happy to do some low-key hiking. As the sole driver, I don't want to spend all day behind the wheel (especially not on narrow, winding roads!) We're fine with leaving the car parked for a day to take an especially great train or boat ride.
Given these parameters, I'm interested in suggestions. We have 5 full days available to travel in Fjord country. (Short, I know.) We have to be back in Bergen by the evening of the 17th to catch a very early flight on the 18th.