I explored 3 beach towns in 'the Hamptons of the South'. One of the Florida gems was my favorite by a landslide.

While exploring Florida's 30A, I spent time at Seaside, Rosemary Beach, and Alys Beach.

Terri Peters

• I spent time along Florida's 30A in three towns: Seaside, Rosemary Beach, and Alys Beach.
• Each beach town was very different, and the one I liked best felt the most "Florida" to me.
• The 30A beach town I'd recommend for a first-time visitor is Seaside for its great food and vibes.

Florida's 30A area is a stretch of white-sand beaches, Gulf of Mexico views, and...