Sea of Sand Sightseeing in Surabaya picture - The Sea of Sand forms the floor of the massive Tengger Caldera. The eruptions of the surrounding volcanoes had spewed tones of molten lava which eventually became the volcanic ash that we see today at the Sea of Sand.
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image -- 848 x 636)
The Sea of Sand forms the floor of the massive Tengger Caldera. The eruptions of the surrounding volcanoes had spewed tones of molten lava which eventually became the volcanic ash that we see today at the Sea of Sand.