We skipped the trip and took the FLØIBANEN FUNICULAR up then walked down. Fairly detailed map available at top station, and we had downloaded detailed map onto iPad for Openstreetmap beforehand. This allowed us to find a very pretty path down the back way; quite steep, we wished we were still in our walking boots. Amazing coming down the river in lovely scenery until only 1/2 mile form the boat. And some lovely old houses in that 1/2 mile too.
Others who had been in the town really enjoyed it as well; several said they would have liked longer there (we were there from about 9:00 till 15:00)