Aquatic nymphs are mythical creatures found in Greek and Roman mythology. The four crossword solutions for the term Aquatic Nymph are NAIAD (5 letters), ECHO (4 letters), OREAD (5 letters), and DAPHNE (6 letters). Naiads were water nymphs associated with springs, rivers, and other bodies of fresh water. ECHO was a mountain nymph who was cursed to only repeat the last words of others. Oreads were mountain nymphs associated with grottoes and cool valleys. Lastly, DAPHNE was a nymph who was transformed into a laurel tree to escape the advances of Apollo.