Partying on lake lanier!?

hey there! i was curious as to where people have fun on lake lanier. i've heard of sunset cove, near lake lanier islands but i've also heard of a cove called cocktail cove. are these the same simply with different names, or are they two completely different areas on the lake? any websites or other way to show me on a map would be fantastic, as well as tips on where to go for the 4th!