So looking at nature wiki, which starts with "Outdoor scenes with notable emphasis on wild plants and greenery, or other lush scenery. Not applicable to barren or artificial landscapes.
Only for fully natural scenery. No elements such as fences or roads should be visible."
(some earlier versions had "or other natural scenery" instead of lush scenery).

Unclear what lush scenery would be.
(perhaps switch from "lush" back to "natural"?)

Nature wiki doesn't mention beaches, but there are 223 posts tagged with beach and nature : nature beach
(edit: in my opinion, a beach qualifies as natural
... but with the wiki's current text a plant-less beach might be seen as "barren")

1) some with no plants
examples: post #17109 , post #88935 , post #96291 , post #219758 , etc

and
2) there are examples with greenery, but I wouldn't say there was "notable emphasis" on the plants & greenery, examples:
post #238888 , post #203862 , and post #772279 , etc