About Suku Tengger
Tengger are a tribe living around Mount Bromo, East Java, which occupies most of the area of Pasuruan, Lumajang, Probolinggo and Malang. Tengger tribe is a sub tribe of Java according to BPS census in 2010. 
Tengger tribe of people known to obey the rules and Hinduism. They believe are the direct descendants of the Majapahit. Tengger name comes from the legend of Roro and Joko Seger Anteng is believed to be the origin of the name Tengger, namely "Teng" An-name suffix Roro "teng" and "ger" suffix name of Ricardo Se-"ger".
For Tengger tribe, Mount Brahma (Bromo) believed to be a sacred mountain. Once a year the Tengger people Yadnya Kasada ceremony or Kasodo. The ceremony was held at a temple located at the foot of Mount Bromo north as Pura Luhur Poten Bromo and proceed to the top of Mount Bromo. The ceremony was held at midnight to early morning every full moon around 14 or 15 in Kasodo (tenth) according to the Javanese calendar.