When we make this trip, I'll be a few months shy of my 79th birthday with my wife 4 years younger. I am much more adventurous and willing to deal with a little inconvenience to save a some money on an already expensive 23 day trip. When the ship, Norwegian Prima, arrives in Southampton, we will use a ship's transfer to Heathrow, where we will catch a flight to Marco Polo airport (Venice.) We will spend the night near the airport, then take a transfer to Trieste where we will board another ship for an Adriatic and Greek Isles cruise. Another transfer will get us to the Athens airport for our flight back to the U.S. So, the only part I have to figure out myself is this portion in Iceland.
I wanted to use a hotel through Norwegian, as they would provide the transfers. But, they are not offering that option, instead they have a 4-day pre-cruise option for over $2,000 p/p.
At this point I've changed the hotel to the Reykjavik 101 area, will book the fly bus to the BSI bus terminal, then taxi the rest.
Thanks for all the suggestions! John