This quiet corner of the Sunshine State trades high-rises and beach crowds for roaming wildlife, a largely untouched shoreline, and one of the South’s most intact forts.A former barrack in Fort Clinch State Park.Credit: Billy McDonald/Getty ImagesTucked along the northern tip of Amelia Island, the northeasternmost point in the state, Fort Clinch State Park offers a glimpse into a quiet, wilder Old Florida. Here, Spanish moss drapes ancient live …