Arenal is only 5,358 feet high and 4,000 years old and still has a lot of growing to do.
Volcanic activity is fairly constant but varies greatly in intensity.
Most of the activity is not dangerous. Some eruptions can be deadly. August 23 three people were seriously burned due to volcanic activity at Arenal Volcano. Two of these people, Ignacio Protti, a Costa Rican guide, and a young girl, have died. This accident has caused us to reassess where it is and is not safe to be at Arenal.