Casa Gustavo is a converted 500 year-old farmhouse now run as a small, informal guesthouse in the spectacular Picos de Europa. Your hosts are an English family with a wealth of information available to guests. Most of the rooms are en-suite, there is a sitting-room with balcony, maps, books and a vine-shaded courtyard for summer evenings. There is fantastic walking on the doorstep and all manner of mountain activities close by.