The lake thing seems strange.
Gina, O.C. is Ocean City, MD. The Maryland coast, right on the Atlantic. Huge spit of island between the ocean and various bays. Beautiful there. And also a tourist trap packed shoulder to shoulder between Memorial and Labor Days, at least half with college kids working summer jobs by day and partying at night. I learned to schedule my visits just outside of those holidays, not only because the crowds thin out, but the lodging rates all go down and it's still nice and warm and everything is still open in full swing. Google it, there's too much to cover, but there's a Boardwalk, piers galore, more seafood than you could ever eat, an amusement park, a thousand things to see and do. It's part of a chain of beaches - Fenwick Island, Bethany Beach, Dewey Beach, Rehoboth Beach, Delaware National Seashore to the north and Assateague (VA) National Seashore to the south. You could get lost for weeks exploring all the hidden (and not so hidden) places along the coast there.