When it was time to return to the classroom, we met at the stairs. We imposed on a student from another class, who happened to be walking by. He took a quick class photo. I had only my phone with me, but at least I can email everyone in the photo a little memento of the many hours we've spent during the last five weekends.
Tomorrow, after working on some materials in the morning, the students will write their final examination. Although it will be nice to be able to enjoy the remaining weekends of the summer, knowing the group will never meet again will be a little sad.