On a day when the kids have grown weary of the beach, this museum provides the perfect bit of edifying entertainment. Started in 1985, a fine set of indoor exhibits covers everything from local archaeology to photography exhibitions dedicated to fishing culture in and around Hilton Head. Those exhibits will be of more interest to adults, but everyone can get behind a June through August evening walk ($20 adults, $15 children) exploring the habits of loggerhead sea turtles. If you're not visiting during the balmy summer months, you can get a guided tour ($10 adults, $5 children) of the museum's butterfly enclosure and learn more about the lives of these curious creatures. A salt marsh walk is also included in the guided tours around the expansive property. Back inside the Discovery House area of the museum (a former plantation house that dates to 1859), visitors can learn about the natural history of Hilton Head by checking out a horseshoe crab tank, mounted bird specimens, and a rather fun cutaway view of a loggerhead sea turtle nest.