St. Simons Island is located near St Simons Island, GA. The trail is primarily used for trail running, birding, and mountain biking and is accessible year-round.
I grew up on St Simons and it's a great place to ride your bike or walk. The sidewalks around the island are for walking and biking and go almost everywhere. It's a safe place for kids to ride as well since they won't be on the road. Just watch out for cars coming out of neighborhoods/side streets since they don't always look for pedestrians.