Featured in that photo is a group that traveled here from southern Japan and ia in the middle of an 11-day visit to Chief Sealth International High School. Our report from CSIHS, which also provided the photo, explains:

Through March 11, 15 students and one teacher from Ritsumeikan Moriyama High School in Shiga prefecture, Japan are visiting Chief Sealth International High School. Each student is staying with a Sealth family and shadowing a Sealth student. During their stay, the visiting students are also preparing presentations to give to local offices of corporations such as Weyerhaeuser, DoubleTree Inn, and Yamato Logistics. If you’d like to know more, please contact Sealth’s Japanese teacher Joshua Hansell – jjhansell (at) seattleschools (dot) org.

According to the English-language pages of their website, the visitors’ school offers “international education,” as does Sealth.