Valmiki Ramayana Yuddha Kanda Sarga 4 Shloka 120

समुत्पतितमेघस्य the rising clouds, सागरस्य of the ocean, वीचिमालाकुलस्य the moving waves, अम्बरस्य and that of sky, द्वयोः both, विशेषः distinguishing between,नासीत् was not there

There was no distinction between the sky with rising clouds and the ocean with moving waves.