The Hogwarts School Association (HSA) is the unified parent/guardian organization for Hogwarts School of Witchcraft and Wizardry. The purpose of the HSA is to build community in the wizarding and muggle world. We organize activities that enrich and support the Hogwarts experience for the students, parents, professors and staff, including the Winter Lodge ice-skating event, the Triwizarding Tournament, Quidditch games, and field trips to Hogsmeade. When you shop through these online retailers through this portal, we will earn a small commission at no additional cost to you.