The resort itself has a nice variety of activities for children and adults.
For the kids, there is gyutaku (fish painting!), crabbing, shelling, nature walks, kids night out, campfire, magic show and lots more.
For adults, there is wine/cheese tasting, "Behind the Ears" tour and some "Cooking with Matilda" classes.
For the family, consider kayaking, canoeing, sailing, fishing, Dolphin cruises, parasailing, water skiing, wake boarding, tennis, biking, shopping and/or dining at one of the more than 300 restaurants on the island.
Also consider a side trip to Savannah or Charleston.
Enjoy!