Indialantic Boardwalk and Park is the town's simplest oceanfront stop: a short boardwalk, beach access, and the Atlantic doing most of the work. It is not elaborate, but that is part of the appeal in a beach community where the main event is sand, surf, and sunrise.
Use it as an orientation point rather than a destination with a long checklist. Come early for cooler air and better light, or in the evening when the beach quiets down and the boardwalk becomes an easy place to linger.