Usage patterns
〈場所〉で遊ぶto play in (a place, e.g. the schoolyard)
The children are playing energetically in the schoolyard.
〈場所〉に集まるto gather at (a place)
All the students gathered in the schoolyard.
〈場所〉を走るto run around (a place)
We ran around the schoolyard during P.E. class.