|Sand Monster by Clark Little|
We understand that shorelines are dynamic places, shaped by both waves and tide. However, where the sand comes from, and the complexities of how it is moved over time to shape beaches is something most of us rarely think about, if we think about it at all.
The below 1965 documentary film The River of Sand, which I think I remember seeing in school when I was but a sprout, gives a good overview of how sand is moved from river mouths and along shorelines. As an aside, it is interesting how straight forward and dense with information it is compared to modern documentaries.