One of the strongest sumo high schools in Japan is Tottori Johoku.
Located in western Japan, Johoku has been churning out professional talent over the past last few years, and is the alma mater of ozeki pair Terunofuji and Kotomitsuki, as well as top-division wrestlers Ishiura, Sakaizawa, Takanoiwa and Daikiho.
Several other juryō-division rikishi are graduates of the institution located just over a kilometer away from the prefecture's famous sand dunes.