Seaside is the streetscape, and the streetscape is walkable

Criteria for this map, printed: a landmark appears here only if the county tourism bureau, Wikipedia, or the fire district's official channels name it. No invented pavilion counts, no rumor amenities, and the public-beach truth stated on everything, because that truth is the town's operating system.

The named center, sourced

• Central Square and the amphitheater lawn: live music, movie nights at Central Square Cinema, a dance festival, and a December Nutcracker, per Wikipedia and Visit South Walton.
• The Seaside Post Office: a working post office that the county tourism bureau calls iconic, and the most photographed structure on the road.
• Airstream Row: vintage silver Airstreams serving as permanent food stalls, with The Meltdown on 30A and Barefoot BBQ named by the county bureau.
• Sundog Books with Central Square Records upstairs, one browsing building at the center, per the county bureau.
• The white pavilions over the dune walkovers: public access points on a beach that is public below the mean high water line.
• The Saturday Seaside Farmers Market: produce, dairy, baked goods, and native plants, per Wikipedia.
• Modica Market for groceries and imports, Amavida Coffee for the morning, per the county bureau.

The honest truth about the sand

This community is the famous one, and the crowds are part of the design. The beach in front of the town center gets thick at midday in season, and the pavilions there carry the most traffic. The beach itself is public below the mean high water line, so no house owns the sand, and the flag system run by the South Walton Fire District is the rule of the water. The calm version of this same town lives in the morning lap, the shoulder months, and the pavilions toward the edges.