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Arenal Volcano, Costa Rica
Ssh, it's sleeping
The day is young, and so is the mist-shrouded mountain in the midst of this Costa Rican rainforest – geologists can only trace Arenal Volcano's eruptive activity back a little over 7,000 years. Given that some elder volcanoes are more than 2 million years old, Arenal is just a toddler (although at 1,657 metres high, it was a fast grower). This tall tyke has been prone to tantrums in the past, erupting almost continuously for more than 40 years starting in 1968. But in 2010 the fumes finally shushed, and Arenal has napped peacefully since.
Ssh, it's sleeping
The day is young, and so is the mist-shrouded mountain in the midst of this Costa Rican rainforest – geologists can only trace Arenal Volcano's eruptive activity back a little over 7,000 years. Given that some elder volcanoes are more than 2 million years old, Arenal is just a toddler (although at 1,657 metres high, it was a fast grower). This tall tyke has been prone to tantrums in the past, erupting almost continuously for more than 40 years starting in 1968. But in 2010 the fumes finally shushed, and Arenal has napped peacefully since.
At about 7,000 years old, this volcano is just a youngster in geological terms.
© Lukas Bischoff / iStock / Getty Images Plus 2026-09-11 08:45:51 :