Will I have a signal while hiking Mount Fuji (Japan) or other volcanoes?

For iconic climbs like Mount Fuji in Japan, EastESIM strives to provide robust coverage, but signal strength can vary. You'll generally have a strong signal at the base and along the lower to mid-sections of the popular climbing trails, connecting to carriers like NTT Docomo or SoftBank. However, as you ascend to higher altitudes or approach the summit, especially in adverse weather conditions, the signal may become intermittent. While many rest huts offer Wi-Fi, relying solely on mobile data at the very peak might be challenging. We recommend downloading offline maps for safety.