Valmiki Ramayana Kishkindha Kanda Sarga 41 Shloka 15

ततः then, दिव्याम् wonderful, प्रसन्नसलिलां शिवाम् river with pure and sacred waters, अप्सरोगणैः celestial nymphs, विहिताम sport, ताम् that, कावेरीम् Cauvery, आपगाम् river, तत्र there, द्रक्ष्यथ you will see.

'Then you will see the sacred river Cauvery with pure and auspicious water, where celestial nymphs sport.