Poas Volcano, Costa Rica

This is the summit area of Poas Volcano, only about an hours drive from the capital city of San Jose. The summit contains a number of explosion craters such as this one, and one of them contains a lake. The crater in this photo contains a small turquoi
se lake of sulfurous steaming water. Poas is one of the main tourist attractions for Costa Rica, but violent explosions occasionally occur here. You can see that there is almost no vegetation and the whole area is covered by ash.
Information Source:
Photo and caption by Scott Rowland
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