i enjoy vacations at the beach
Yes, the beach is great.  Have you been to Hawaii which is our 50th state?
i never been but i would like to go
Hawaii became a state on August 21, 1959
what is the main beach in Hawaii?
The largest island is called the "Big Island" or "Hawaii Island" to avoid confusion with the state 
So the name Hawaii is the overall name of the Islands 
Yes that is the name and it is the only US state located in Oceania and the only one composed entirely of Islands