Due to the information about restrictions on crossing the Danish border for foreigners, I decided to resist from traveling to Iceland and postponing the trip to 2021. I have no guarantee that I will be admitted to Denmark because foreigners who can cross this border are only those working there, who have the appropriate document or members of Danish families. The regulations mention nothing about the guarantee of entry into their country of persons who have bought ferry tickets from their territory.
These restrictions are binding for Poles until August 31, 2020 and our departure was to take place from Denmark on July 21, 2020.
https://iceland2k20.blogspot.com/