The "Shetland Bus" operation was moved to Scalloway after its original location at Lunna House on the North tip of Shetland was considered to be too vulnerable to German commando raids from occupied Norway.
There is a small cemetery at Lunna House with a few Norwegian sailors graves there and it is quite poignant because it is a very isolated and lonely site and far from their homes in Norway, in fact it is far from anywhere.
I am sure that the Norwegians found Scalloway a "bustling metropolis" compared to the Lunna House site.