Fountain of the naiad (water nymph) Arethusa on Piazza Archimede, Ortygia Island, Syracuse, Sicily, Arethusa is the deity of the spring of Arethusa (Fonte Aretusa). Astrogeographic position. in spiritual water sign Pisces sign of mystification, the dream world, art & temples. 2nd coordinate in female air sign Libra sign of angels, harmony, decoration, beauty. Field level 4.