A nymph (Greek: νύμφη, nymphē) in Greek and in Roman mythology is a young female deity typically identified with natural features such as mountains (oreads), trees and flowers (dryads and meliae), springs, rivers and lakes (naiads) or the sea (nereids)
Nymphs are the minor deities that care for nature. The most mentioned 'varieties' are dryads (tree nymphs) and naiads (water nymphs). They are Greek/roman deities, but only minor ones, usually dedicated to a specific tree/body of water. They often mated or served with higher gods or mated with mortals to produce demi-god offspring, e.g. Achilles was the son of a sea nymph, Thetis, and a mortal King.
