I've just booked flights to Bergen from 18 Oct to 23 Oct - 5 nights. Would appreciate your thoughts on whether we should base ourselves in Bergen and take day trips? We would really like to take a ferry and or train to see the fjords and mountains, so should we have a night or two somewhere else as well? I haven't a clue where to start so would really appreciate any suggestions. We don't plan to hire a car, so public transport is our preferred option. Many thanks.