You searched for: “kymophobias
kymophobia, cymophobia (s) (noun); kymophobias, cymophobias (pl)
A panic regarding waves that may be related to a fear of motion, water, or of landscapes in which water flows or waterfalls are prominent: Whenever Debbie went to the beach or was near a cascade or river, her kymophobia completely diminished any possible pleasure from seeing them or being near them.