ANNA MARIA ISLAND AND SEA TURTLES: The Island Turtle watch explains that five species of Sea Turtles swim and feed around Anna Maria Island. The most common nester on our shoreline is the Loggerhead. It has a reddish-brown shell and is named for its large head. Adults can weigh between 200 and 350 pounds and can reach 3 feet in length. From May to October Sea Turtles, visiting summer guests...