Territorial gap and sustainability of tourism in Italy. Proximity tourism as a possibility? – Tourism is one of the most relevant factor of impact on development and sustainability. In Italy tourism generated strong territorial gaps, as we’ll show through several maps of tourism densities, migration dynamic, house rents and basic services levels of accessibility. This paper is aimed to discuss the near-home tourism as a possible key of sustainable development, with particular focus on Apennines in Lazio and Abruzzo regions.