There are some good expeditions to be had into the mountainous interior of the country and along the coast there is beach after beach to be explored, many of them quite empty even in high summer. If you need it the mobile internet, smartphones, PC Tablets, etc., work well in Li Reni. We have a caretaker who lives minutes away. He is a lovely guy with a young family and will happily help you as needed.
Do contact me if you are interested in renting Li Reni or you just want to know more about the house and Sardinia. There is also a pretty comprehensive visitors pack with detailed directions and if you want to know more about horseriding, trekking, diving, cycling, mountain climbing, caving, sailing, etc., please just ask.