Sea Pines is one of the largest residential and tourist plantations of Hilton Head, covering 5,200 acres. ... Sea Pines is also associated with the world-renowned Harbour Town marina, and its red and white striped lighthouse emblem, built in 1969 to help ships traveling in Calibogue sound. walk, run or ride your bike on all the trails.Enjoy the beaches, playgrounds, tennis courts, golf courses and all services, from bars and restaurants to shops for your purchases.