I know the question I have comes up a lot in this forum, but help with our particular situation would be great if anyone can.
We're doing the nutshell on our own during our trip in August with one night in Aurland, and have found piecing together the ground transportation elements of this to be tricky. On day one of the nutshell we're taking the 8:25 train from Oslo, arriving in Flam at 14:13 (assuming we can make the tight 9 minute connection window we have in Myrdal). To get to Aurland, we ended up reserving seats on the Norways Best shuttle, having to buy extra seats for our luggage (they advised us that their shuttles couldn't or might not be able to accommodate even modest amounts of luggage). We'll then take a Norways Best shuttle up to the Stegastein Viewpoint later that afternoon. We gave up trying to get the Borgund Stave Church, we probably needed two overnights in the Flam area to make that one work.
In talking with the local taxi companies, they advised us they were 100% booked for our dates of stay, so we shouldn't count on them to get us anywhere . . . although they also said we could call day of and you never know. Not reassuring! Given that the first bus from Aurland to Flam in the morning of our nutshell day 2 isn't until after the sailing time of the ferry we had hoped to take (the 11:15 sailing from Flam on the LustraBaatane ferry), we switched to the express ferry which has an 11:50 departure from Aurland.
The remaining ground transportation logistic is then getting to Voss on day 2 (which is Thursday, August 10th). Our ferry will arrive in Gudvangen at 13:30. The RS book seems to indicate that special busses arrive to coordinate with the arrival of most (but not all) ferries. Is our ferry one of those?? If not, it appears from looking at the bus schedule on entur.no that we'll have 2 hours to cool our heels in Gudvangen before a 15:30 bus comes by. We'd much rather get into Bergen earlier than have 2 hours in Gudvangen, but will make that work if we have to.