For any of the Nordic experts here, I'd apprciate any advice you might have for activities/sights in the following towns in Greenland:

Qaqortoq
Paamiut (Frederikshab)
Nuuk (Godthab
Maniitsoq (Sukkertoppen)
Sisimiut (Holsteinsborg)
Ilulissat (Jakobshavn)

We will be spending a day in each town, The ship's excursion options seem limited.

Many thanks for your insights!