Officially, in addition to many smaller islands, the country consists of the four major islands in the volcanic Comoros archipelago: northwesternmost Grande Comore (Ngazidja); Mohéli (Mwali); Anjouan (Nzwani); and southeasternmost Mayotte (Maore). Although the Comoros has many natural resources for tourism, such as its beaches and marine environment, it does not have as strong a tourist industry as its regional competitors Réunion, Mauritius, and Seychelles. Its weak tourist industry is mainly because of its insecure political climate, with many political upheavals over the past three decades.