Sand Pillars (Dochu, Shikoku, Japan) Sand Pillars (Dochu, Shikoku, Japan) Sand Pillars (Dochu, Shikoku, Japan) Sand Pillars (Dochu, Shikoku, Japan) Sand Pillars (Dochu, Shikoku, Japan) Sand Pillars (Dochu, Shikoku, Japan) Sand Pillars (Dochu, Shikoku, Japan) Sand Pillars (Dochu, Shikoku, Japan) Sand Pillars (Dochu, Shikoku, Japan)