Poás Volcano is a contender for Costa Rica’s most impressive and active volcano.
You will enjoy an interpretive trail that winds upward through cloud forest and delivers you to a breathtaking viewpoint. The stunning vista encompasses a 1.5 kilometer-wide crater and its two crater lakes, one of which is startlingly bright—and one of the most acidic lakes on earth.
The 2,708-meter stratovolcano has erupted 40 times in the past 200 years. Even on its calm days, volcanic gases spew from vents, contributing so much sulfur to the air that it’s not recommended to remain at the observation area for more than 20 minutes.