Like many of us, I'm trying to maximize a small amount of time in Norway. Spouse and I were originally thinking of hitting Bergen and Oslo and using the 14-hour one-way NiN tour as a means of transporting ourselves from Bergen to Oslo and also seeing the nature at the same time.
On second thought, the 14-hour day will be too taxing, and we'd like to redo our plans. The new plan would eliminate Bergen altogether; rather, we'd use Oslo as a base before and after a 2-night hotel stay in a fjord city such as Flåm.
You can read my initial planning post here: https://community.ricksteves.com/travel-forum/general-europe/itinerary-critique-london-norway-sweden
The revised trip would be 4 nights London, 2 nights Oslo, 2 nights Flåm, 2 nights Oslo, 5 nights Gothenburg:
Day 1: Arrive London Heathrow, settle in
Day 2: Kew Gardens or Kensington Gardens plus his must-sees, depending on energy level
Day 3: We'll be attending a particular classical music concert this day and will have our tix in advance
Day 4: Finish what we didn't see in London (see day 2)
Day 5: Take a one-way flight to Oslo and settle in
Day 6: Open-air folk museum and viking museum
Day 7: Train to Flåm, settle in and overnight in Flåm
Day 8: Stare agape at nature, etc., overnight in Flåm
Day 9: Train back to Oslo, overnight in Oslo
Day 10: Any unfinished Oslo sights; Operahuset plaza, etc.
Day 11: Take train to Gothenburg, Sweden and settle in
Day 12: The rest of the trip is filled with "being Swedish" and possibly meeting with cousins; he might play golf
Day 13:
Day 14:
Day 15:
Day 16: Fly home from Gothenburg on a through-ticket connecting in Heathrow
This was the "old" trip we'd like to revise: 4 nights London, 2 nights Bergen, 2 nights Oslo, 2 nights Fredrikstad, 5 nights Gothenburg
Day 1: Arrive London Heathrow, settle in
Day 2: Kew Gardens or Kensington Gardens plus his must-sees, depending on energy level
Day 3: We'll be attending a particular classical music concert this day and will have our tix in advance
Day 4: Finish what we didn't see in London (see day 2)
Day 5: Take a one-way flight to Bergen and settle in
Day 6: Stroll around, enjoy first time in Scandinavian culture, rest up for day 7
Day 7: Depart 8:43am for Norway in a Nutshell tour one-way Bergen to Oslo, arriving in Oslo at 22:35
Day 8: Open-air folk museum and viking museum plus Operahuset plaza
Day 9: Any unfinished Oslo sights (see day 8); take a 90-min train or bus ride to Fredrikstad, Norway (ancestry-related) and settle in
Day 10: Explore Fredrikstad; he might play golf
Day 11: Take a 2.5 hr train or bus ride to Gothenburg, Sweden (ancestry-related) and settle in
Day 12: The rest of the trip is filled with "being Swedish" and possibly meeting with cousins; he might play golf
Day 13:
Day 14:
Day 15:
Day 16: Fly home from Gothenburg on a through-ticket connecting in Heathrow