RICHMOND HILL — The 16th annual Great Ogeechee Seafood Festival in Richmond Hill included a wide variety of traditional Southern and coastal food, such as shrimp, crawfish, peach cobbler and fried s’mores, which might explain why an estimated 25,000-35,000 visitors — not counting volunteers and workers — descended on J.F. Gregory Park last weekend. With each of those people eating their fill — well, that’s a lot of food.Ricky and Sharhonda Tippins, lifelong Jesup residents, had never heard of the Seafood Festival until this year. “Our favorite part is the turkey legs,” Sharhonda said as the two ate at a picnic table.