World's largest waterfall lies beneath the Denmark Strait, separating Iceland+Greenland. Cataracts 2,000 feet under the strait's surface plunge to 10,000 feet. Many years ago I read that an underwater waterfall existed off NSW mid north coast but now can't find any evidence.
— 🇺🇦🌻Gemma Wiseman-on Wiradjuri land (@AuraGem) July 25, 2022
Sand waterfall off NE end of Fraser Is.Eroded Sydney sandstone sands moved by SE sweep up to Gold n Sunshine coasts and forming Stradbroke/Moreton/Frazer Is.(Moving sands stop GBR growing further south) At Nth end of Fraser Is, easterly current sends sand over edge to the abyss.
— Konan the Kontrarian (@NewellChook52) July 25, 2022
