What is the internet coverage like with DataESIM for outdoor activities in Réunion, like hiking at Piton de la Fournaise?

DataESIM leverages Réunion's advanced French telecommunications infrastructure, providing robust 4G/5G coverage in key accessible areas. You can expect strong signal strength at popular viewpoints such as Piton de la Fournaise and within the main villages nestled in the 'Cirques' like Cilaos and Salazie. However, deep within the volcanic caldera, dense forest trails, or highly isolated ravines, signal availability may diminish. For critical navigation or emergency communication in very remote zones, satellite communication should be considered a supplementary option.