Oireachtas na Gaeilge is a big special party for people who love speaking a language called Irish. It's like a big playground for grown-ups where they can play games and have fun using Irish with other people who also love the language.
At this party, there are lots of different things to do, like singing, dancing, and telling stories in Irish. You can also play sports and other games using Irish. People come from lots of different places to be a part of this party and enjoy these fun activities together.
A very special thing about this party is that people can meet and talk to important people who make the rules in Ireland, called politicians. They can even talk to the President of Ireland, who is like the king or queen of the country. They can tell the politicians and the President how important it is to keep using Irish and make it a bigger part of everyday life in Ireland.
Overall, Oireachtas na Gaeilge is a fun and exciting way for people who love Irish to come together and celebrate it, while also making their voices heard to important people in their country.