As I went for a walk this morning, passed a big white building that looked like it was a school. I could hear young male singers singing together from an open upstairs window. In front of the building, there were uncarved blocks of stone and some carved pieces. I could not help myself and stuck my head in the downstairs door. There were rooms filled with blocks of stone, partially carved pieces and completed sculptures. In one corner, there were a group of young men with carving tools being supervised by an older man and working on some stone sculptures.
After getting back to the boat and doing some research, found out it is both a music school and a stone carving school.