small waterfall and stream in the tropical rainforest in the ulu temburong national park, brunei darussalam, island of borneo

stream wilderness river nature forest watercourse water rapid waterfall woodland creek tree rock autumn leaf jungle small interior tropical rainforest ulu temburong national park brunei darussalam island borneo spring summer stone ecology thailand background beautiful beauty environment flowing foliage green landscape scenery moss motion mountain natural people outdoor object scenics travel wild wood