It's a trek that brings thousands of visitors to Indonesia every year. Wake up when it is still dark, ride in a jeep over unkept dirt roads, sleep-closed eyes barely taking in the throngs of vehicles, horses and animals that compete for space on the side of a mountain. Climb, higher than the jeep or horses can go. Your feet barely work and your imagination is going wild at what might wait on top.
It's a pilgrimage to worship a portion of nature's majesty: the sun rising over the volcanic range that includes still-smoking Mt. Bromo.
Visitors actually trek to the top of Mount Penanjakan for the viewing. There, under cover of darkness, you wait for dawn and the fireworks to begin. That second the sun breaks through the clouds, it's all worth it. Every step you took to be part of a moment where French, German, Indonesian, American, Australian etc etc are all united in appreciation for the majesty of nature.