whispering sand in mount bromo indonesia

1. Whispering Sands is one of the places in the area bromo east, where there is sand thicker, softer and glance similar to the deserts of the Middle East or the Arab region, why in the air whispered thicker sand? because the sa'at Mount Bromo erupts, wind direction brought volcanic ash tends to the east, precisely the direction of sand whispered, and this also made in one of the natural attractions in the area of bromo Tengger Semeru National Park