Another postcard from Costa Rica showing a volcano: the active crater in Poas Volcano (Crater activo del volcano Poas). Technorati tags: [ Poas | volcano | crater | postcard ] Related PostsNational Park on the Hawaii – Lava FlowFuente OsmenaAerial View of VigoPort Elizabeth – Eastern ProvinceMaria Cristina Falls in PhilippinesLeba – Baltic Coast – Poland Active crater – Poas Volcano