Geologic History
Arenal is the youngest and most active of all the mountains in Costa Rica. Scientists have been able to date its activity back to more than 7000 years ago. The area remained largely unexplored until 1937, when a documented expedition took place to reach the summit. It has been considered eruptive since 1968.
Read more about this topic: Arenal Volcano
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“All things are moral. That soul, which within us is a sentiment, outside of us is a law. We feel its inspiration; out there in history we can see its fatal strength.”
—Ralph Waldo Emerson (1803–1882)