Camilla's place was fantastic! There is a balcony/terrace that goes around the house from which you can directly see Etna. So having breakfast on the balcony and getting the feel of Etna for the day was one of our favorite activities.
The sea is also very close to Camilla's place. It is approximately 100m to walk to the sea and you can swim then and there. We went for runs in the morning and then at the end of the run just went for a quick swim.
One thing to consider is you may want to have a car to use there because the place is about 2.5km from Mascali and the roads there are not easily walkable. Thus for shopping and other errands it is best to have a car. You can rent a car from a place ~500m away if you only need it occasionally. Also there are restaurants between 500-1000m away from the place so you can also walk there.
Overall would recommend, we had a great time! :)