Lernaean Hydra just to slay Heracles. Upon reaching the swamp near Lake Lerna, where the Hydra dwelt, Heracles covered his mouth and nose with a cloth to protect himself from the poisonous fumes. He shot flaming arrows into the Hydra's lair, the spring of Amymone, a deep cave from which it emerged only to terrorize neighboring villages. He then confronted the Hydra, wielding either a harvesting sickle (according to some early vase-paintings), a sword, or his famed club. The chthonic creature's reaction to this decapitation was botanical: two grew back, an expression of the hopelessness of such a struggle for any but
Greek frigate Hydra delivered to the Hellenic Navy on 15 October 1992 and first sailed in Greek waters on 28 January 1993. The crest of the frigate "Hydra" is the same as that of her predecessor. It is based on one of the flags which the ships of Hydra sailed under during the 1821 revolution. In April 1988, the Hellenic Navy proposed and approved the four frigates of the MEKO 200 type in an effort to modernize its fleet. After a lengthy negotiation process, the following contracts were signed to fulfill the program: Greek frigate Hydra Hydra" (F-452) (Greek Φ/Γ "Ύδρα) is the