ocean or the ocean

Hi.:-D
The word "ocean" needs an article like "an" or "the"?
For exmaple, between fully exposed to ocean and fully exposed to the ocean ,
which one is correct? Both are right?

I'm curious.
Thank you in advance.

You can be exposed to sunlight (not countable), but you can't be exposed to ocean (countable).

the ocean

I appreciate your help. :-D
Ocean is a countable noun.
Thanks a lot.