This book consists of three articles on the theme of natural and cultural heritage in Tunisia and its relationship with spatial planning. We have chosen to study three territories: two island environments: Jerba and Kerkena and a mountainous region: Kroumirie. The first article is entitled "Tourism and transport in two insular environments in Tunisia: the Kerkena archipelago and the island of Jerba". The second article is entitled "Redevelopment of the old districts of the Kerkena archipelago: the case of the village of Ouled Bou Ali". These two articles are a continuation of my doctoral thesis on the Kerkena archipelago. The third article, entitled "The Kroumirie mountains: a marginalised area with significant potential for alternative ecological and cultural tourism", concerns a mountainous area completely different from Kerkena and Jerba, which I studied when I taught at the Institut Supérieur des Sciences Humaines in Jendouba from 2012 to 2017.