The annual music gathering at venues along the beaches of Walton County in Florida's panhandle was co-founded by Atlanta artist manager Russell Carter and this year features headliners including Elvis Costello, Rosanne Cash and Jeff Tweedy as well as Georgia favorites Shawn Mullins, David Lowery, David Ryan Harris, John Driscoll Hopkins and more.

Since 2011, a fleet of seaweed patches double the size of the contiguous U.S. has cycled from West Africa to Florida, threatening beaches from Martinique to Miami. This year, it could grow bigger.