Hi Mark,
It's good that you have plans to watch a gaelic football match during your visit to Dublin.
Croke Park is the national stadium of the Gaelic Athletic Association and, with a capacity of more than 83,000, is the largest stadium for any sport on the island of Ireland. It's a great place to watch both gaelic football and hurling matches throughout the year.
From now until August there will be regular matches taking place at Croke Park, typically intercounty matches that will attract large crowds. You can see the fixture calendar for matches scheduled to be held at Croke Park
on their website.
These are an even mix of gaelic football and hurling matches. While both are wonderful to watch live, in my opinion there is nothing that can compare to the speed and excitement of a hurling match.
You can purchase tickets for matches at Croke Park
here and learn more about the process of doing so
here.
Regards,
Eoin