I was not planning to reach the Etna summit during my trip to Sicily in May 2014. However, it was impossible not to spot the mount Etna (always covered by cloud on the top) when travelling from Val di Notto towards Catania, and then from Nebrodi and Madonie mountains. We went via Bronte, which is famous for pistachio - it is grown almost everywhere around Bronte, and I was pretty surprised how pistachio tree really looks...
From Bronte we did short trip to Rifugio Piano Dei Grilli, which is already in the buffer zone of WHS; (photo: View from Rifugio towards Etna). However, the road from Bronte crossed the lava flow that already belonged to the core zone. From the Rifugio, there are quite a lot of marked trails going inside the national park. I felt like in gardes of Eden there, because everything was in bloom in May.
I enjoyed the trip a lot even without climbing the steep slopes of the Etna stratovolcano.