"Opened in May 2005, the postal outlet on Tanna Island's Mt Yasur is recognised as the only post box in the world on a live volcano. Known as Volcano Post, this follows the famous Underwater Post Office in the second of Vanuatu Post's Xtreme series of unique and innovative postal facilities where official mail is collected, specially postmarked and sent throughout the world. The incredible postal locations enable visitors to mail home memories of Vanuatu's breathtaking sights and adventures. [...] All mail receives a unique Volcano Post cancellation, which will become sought-after items amongst the world's stamp collectors. [...] Imagine showing your friends a postcard from the Volcano Post Box, which was sent to you just a lava rock's throw from molten lava with temperatures over 1000°C!" Between you and me, if they strove to open a post office on a volcano, they could apply the postmarks in a correct way, not randomly and incomplete.
Read more »