On a camping trip to Little Tybee Island, accessible by boat only.
I’m not sure what species of water lily this is, nor whether the small white flowers belong to it. My search led me to believe that the flower isn’t produced by the water lily, as it doesn’t appear that any Nymphaea or Nuphar produce similar flowers. Nuphar advena appears to be a common species in Georgia, but it produces robust yellow flowers, and Nuphar, if I remember correctly, often have less rounded leaves that extend out of shallow water.
The only water lily I’m familiar with in the US is Nymphaea ordorata, which was common is Ohio wetlands, but without the flower, I can’t confidently make an identification.