Will I have coverage in Bomarsund Fortress ruins and outside major cities?

Yes, you can generally expect good coverage even when exploring historical sites like the Bomarsund Fortress ruins or venturing outside major cities like Mariehamn. The local carriers in the Aland Islands, such as Ålcom and Telia, have invested in robust network infrastructure to cover the archipelago. While remote islands or very dense forests might have weaker signals, popular tourist anchors and most inhabited areas, including places like Eckerö, typically enjoy reliable 4G/LTE service. Your DataESIM eSIM connects to these strong local networks, ensuring you can navigate, share photos, and stay connected throughout your adventures across the islands.