Tretes waterfall is the highest waterfall in East Java and it has 2 streams with 158 high and it lies in 1250 m above sea level.
This waterfall is located in Raden Soeryo Forest Park in Jurug Guah Mountain, Anjasmoro Mt complex and part of conservation forest park that still genuine. This waterfall is administratively located in Tretes hamlet, Galengdowo village, Wonosalam sub-district. Geologically, this waterfall is the result of volcanic rock old quarter.
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