The antebellum enclave of Beaufort, South Carolina, springs to life off the typewriter of hometown author Pat Conroy (“Prince of Tides”) and in Tom Hanks’ feet running down a highway in “Forest Gump.” But just 30 minutes northwest at the LifeTides Institute, where a dutiful educational mission has drawn Road Scholars for nearly 20 years to a 350-acre marsh island at the head of a river leading to Port Royal Sound and the Atlantic Ocean, the allure and scent of the South is anything but fiction. In a “Best BBQ in the World” program, a delectable smokiness wafts from the BBQ pit. You can smell the salt creek as your kayak slides past tall marsh grass. The freshness of sunrise fills the nostrils as your binoculars hone in on a Roseate Spoonbill breakfasting. Here in the Lowcountry, you’ll see why learning and sensory gifts go hand in hand.