Abstract: Article is aimed at reviewing the inventory of natural objects with the first step of geodiversity classification. There are present similarities and differences between volcanic islands in Europe, in terms of geodiversity management. Complete geodiversity is assesed by qualitative and quantitative value complementing the information about the state of the natural environment. The individual components of geodiversity, classified in the geological contex and taking into consideration geotourism needs and risk management on volcanic islands can affect on geotourism sustainability. The research area include European volcanic islands which belongs to European Geopark Network (EGN): Azores Archipelago, Canary Islands and Iceland. EGN is a trans-national partnership of geoparks in Europe formed in 2000, and include 69 geoparks in 23 countries. All the mentioned islands has different geodiversity. According to that, trnsformation of geological value into the tourism product causes differences in management. They are dependent on rules of EGN which helps to create geoparks and discover new areas with geotourism potential. Volcanic islands are closely connected with the volcanic and tectonic processes. According to that, the origin and location of islands plays an important role in the geotourism development. This paper is the first comparison of volcanic islands in Europe according to geodiversity. The comparison allows for better understanding of geotourism risk management, spreads knowledge about geology, may also contribute to tourism income by increasing awareness of tourists about the geotourism destinations.