Myrtle Beach in South Carolina has become a very popular place to retire because not only is it an active city to be in but the cost of living is cheaper than a lot of places. It has a beach that is about 60 miles long and it has over 120 golf courses for the avid golfers.
It is a tourist town and there is traffic but it has every type of retirement community option and excellent hospitals. The climate is generally warm subtropical environment on a flat terrain. You should go see it before you decide to move there but it is a good place to retire to.