Deer Island is an uninhabited island and protected park off the southern coast of Biloxi, Mississippi. The island has been inhabited for hundreds of years by Native American civilizations and was even home to an amusement park in the early 20th century. These days, it's a beautiful natural preserve that's protected by the state of Mississippi.
Your best bet for a day at Deer Island is kayaking. There are kayak rental and tour companies, but it's not necessary if you're in good shape and have a map handy. There are few better ways to spend a spring morning than kayaking out in the morning, seeing the Gulf's dolphins breaking water, and having a picnic lunch on one of the island's virgin beaches.