Will my internet function on the Aran Islands ferry with my Ireland CoreESIM?

Yes, your CoreESIM will generally maintain internet connectivity on the Aran Islands, specifically on Inis Mór, and at the departure port of Rossaveel. During the ferry journey across Galway Bay, however, you may experience temporary signal fluctuations or drops, particularly further from the coastline. Connectivity typically resumes as the ferry approaches the islands or mainland, relying on the nearest coastal cell towers.