Hogsmeade.

Since the students from Shiinden and Malicedom are all too young to visit Hogsmeade on their own, and they think it would be a shame if their guests didn't visit the village, they decide to organise with the families.
The first Saturday the village is open to the students, an adult member of the families of the guys from Nortrig is supposed to go to accompany their kids. (Not necessarily parents.)

The family members have to reach the Hogsmeade station on their own (through portals or teleporting).
The kids from Nortrig are already there with Hagrid, waiting for their relatives to come to spend a free day in Hogsmeade with them.