Jekyll Island is an island off the coast of the U.S. state of Georgia, in Glynn County; it is one of the Sea Islands and one of the Golden Isles of Georgia. The city of Brunswick, Georgia, the Marshes of Glynn, and several other islands, including the larger St. Simons Island, are nearby. Its beaches are frequented by vacationers and guided tours of the Landmark Historic District are available. Bike trails, walks along the beaches and sandbars, and Summer Waves, a waterpark, are a few of the many things vacationers can do. The district consists of a number of buildings from the late nineteenth and early twentieth centuries. The island is also full of wildlife, consisting of many different mammals, reptiles and birds living and breeding in the island's inland marshes.