First answer:
they settled, intermarried and became an integral part of Irish society
Second answer:
That's the standard answer but Y-DNA studies have indicated otherwise. A Study by McEvoy et al stated "The Vikings (or Norse) played a prominent role in Irish history but, despite this, their genetic legacy in Ireland, which may provide insights into the nature and scale of their immigration, is largely unexplored."
..."The findings are consistent with a relatively small number of Norse settlers (and descendants) migrating to Ireland during the Viking period (ca. AD 800-1200) suggesting the that Norse colonial settlements might have been largely composed of indigenous Irish."
How did the vikings eventually establish vinland?
Viking Raiders happened in 1983.
They weren't Irish they were Viking.
monasteries.
they went to valhalla
The Viking sailed to Ireland to seek relief from over-crowding. At first they remained coastal, they eventually became entangled in local skirmishes, and eventually intermarried.
Some place.
How did the vikings eventually establish vinland?
Viking Voyage happened in 2010.
Viking Child happened in 1991.
Viking Raiders happened in 1983.
England, Ireland, Scotland, France.
A single Viking warrior was unearthed in 1840 and 1841 near Larne in County Antrim, Ireland (now part of Northern Ireland).
True, Viking ports were established at Dublin.
Ireland, Scotland, England, France.
They weren't Irish they were Viking.
From 795AD to 1014AD.