oyster bed vs oyster park

oyster bed and oyster park both are nouns.

Word	Noun	Adjective	Verb	Adverb
oyster bed	Yes	No	No	No
oyster park	Yes	No	No	No

As nouns, oyster bed and oyster park are synonyms defined as:

oyster bed and oyster park: a workplace where oysters are bred and grown

Other synonyms of oyster bed include oyster bank.

oyster bed (noun)	oyster park (noun)
a workplace where oysters are bred and grown	a workplace where oysters are bred and grown