camping area vs camping ground

camping area and camping ground both are nouns.

Word	Noun	Adjective	Verb	Adverb
camping area	Yes	No	No	No
camping ground	Yes	No	No	No

As nouns, camping area and camping ground are synonyms defined as:

camping area and camping ground: a site where people on holiday can pitch a tent

Other synonyms of camping area include bivouac, campground, camping site, campsite, encampment.

camping area (noun)	camping ground (noun)
a site where people on holiday can pitch a tent	a site where people on holiday can pitch a tent