Waking up to the sound of waves and heading straight to Calhau never gets old for me — it’s my default beach when I want a mix of easy access and decent infrastructure. Praia do Calhau has a longshore promenade, kiosks that sell fresh fish and tapioca, and enough space to spread a blanket without feeling squashed. I like walking toward the rocks at low tide; the light in the morning can be insane for photos, and there are little pockets where the water calms down, which works great if you’ve got kids or just want to float without big surf.
A short ride west brings you to Ponta d'Areia and the Espigão, which is where I go when I want a livelier scene. There’s a jetty that people fish off, young crowds at sunset, and you can find hibachi-style snacks from street vendors. If I want to escape the city buzz, Olho d'Água is my mellow pick: shallower waters, families setting up umbrellas, and boats that head out to quieter spots. For bolder beach days I head to Araçagi or São Marcos — more wind, bigger swells, and a raw, less-developed coastline that feels like hitting a secret spot.
If you have extra time, take a day trip to Alcântara for historic ruins and calm bays, or arrange transport to Barreirinhas to see 'Lençóis Maranhenses' (not a beach exactly, but otherworldly dunes and freshwater lagoons). Practical tip: tides matter here — low tide opens up pools and natural sandbars, so time your visit for the experience you want. I usually end my beach days chasing a sunset snack and a cold coconut, feeling like the island gave me a new secret each time.