My husband and I have visited Hilton Head Island, South Carolina for over 30 years. It is such a beautiful place and we stayed in the Shipyard Plantation, which is a gated community for most of the time we have visited. We owned a timeshare there and it is a gated community with beach access and bike trails.
Last week we stayed in Sea Pines for the first time which is a gated community and the first development on Hilton Head Island, South Carolina. We enjoyed staying there and you could go into that plantation or gated community and never leave and have a wonderful time.
Here are two links to Hilton Head Island and Sea Pines