The children are playing their favorite musical instruments. After some practice, they're all excited to go on a musical parade to Seagull Rock - everyone except poor Roisin. She can't choose an instrument she likes, and her singing makes the other children laugh.
After spending the morning pretending to build a skyscraper, the children decide to go on a hike to Inis Spraoi's oldest building, the mound at Two-Knocks.