Antidunes -"Sand Waves" Moving Up Stream

[@RakeshKumar-qv5nw]

fantastic natural example

[@lightningfan9191]

Thanks!

[@VladLarichev]

Thank you!

[@ZTHenrique]

Greatt video

[@sashacarter1854]

Pacific beach? Lifeguarf tower 12 and beds of black magnetite sand

[@extazzpsy]

thanks