4) Costa Rica´s Marvels of Fire
As part of the Pacific Ring of Fire, Costa Rica´s volcanoes are among the most mesmerizing in the world. In fact, the present-day landmass known as Costa Rica is the result of complex volcanic activity that took place some 75 million years ago and still continues today.
Counting every location or crater where an eruption has occurred within its borders, Costa Rica volcanoes boast a stunning 112 sites throughout the country. Most Costa Rica volcanoes and their surrounding areas have been made into national parks.
One of them is Arenal Volcano, listed among the 10 most active volcanoes in the world and for a good reason: It regularly puts on a spectacle, showing off with strong rumbling sounds and occasional rock avalanches, as well as smoke, ash and lava eruptions that descend its slope at speeds reaching 70 kilometers per hour and temperatures reaching 1,000 degrees Celsius.
Arenal Volcano´s last great eruption took place in 1968. Until then, it was assumed that the volcano was just another peak of the mountain range. The mountain and surrounding area were declared a national park in 1994. Thermal hot springs are now the area’s main attraction, most of which boast nearby trails and numerous lookout points.
Courtesy of http://www.visitcostarica.com