Embark on a guided trek along Mount Etna's north side. Discover the craters at the summit, wander through the forests, stare in awe at the lava streams, and admire the eruptive fractures. Begin the trekking route along the dirt road that leads from Piano Provenzana to the summit craters of the volcano. Make a stop to see the ruins of the Hotel dell Betulle, the only visible structure that stands from the lava flow that occurred in 2002. Along the route, take the time to visit and study several volcanic morphologies, all related to a series of eruptions that have occurred overtimef on the north side of Etna. In particular, the flank eruptions have left the most evidence, especially the last one, which threatened the city of Linguaglossa. See the structures called Hornitos, which means, small over, and go up along the cinder cones. Once at the summit, look over the edge of the craters and go down inside a sandy channel to get back to the starting point.