Tibau do Sul is not a single place but a municipality of about 103 square kilometres holding three coastal villages: Tibau do Sul itself, sitting low above the lagoon at roughly 25 metres of elevation; Pipa, a few kilometres south; and Sibaúma, further south again. Roughly seven kilometres of road and sand separate each from the next. Settlement here dates to 1873, and the place spent most of the twentieth century as somebody else's district — a village within Goianinha, promoted to district status in 1911 and only cut loose as its own municipality on 3 April 1963. Natal, the state capital, is about 80 kilometres away, close enough to matter and far enough that for decades almost nobody made the trip.

Lagoa de Guaraíras is brackish, fed by both river and tide, and edged with mangrove and dune. It is the reason the original village sits where it does: a sheltered anchorage on a coast that otherwise offers cliffs and open surf. Mangroves are nurseries, and the lagoon's biodiversity has always been the local larder — crab, shrimp, fish hauled in on small boats. The Rio Catú threads through Tibau do Sul on its way past Canguaretama and Vila Flor, calm and green-banked. At the end of the day the whole town seems to reorient itself westward; watching the sun drop into Guaraíras is a local ritual rather than a tourist gimmick, though the tourists have joined in.

The bay between the cliffs is called Baía dos Golfinhos, and the name is literal. The dolphins are boto-cinza, *Sotalia guianensis*, a small grey coastal species found along the Atlantic shores of South America and listed as Near Threatened by the IUCN. They come close in at low tide, hunting the shallows, and they are most reliably seen at dawn and again toward dusk. Boats go out to watch them. So do people who simply walk the sand at first light and wait. Neither approach guarantees anything — these are wild animals following fish, not a scheduled attraction — which is precisely what makes a sighting worth the early alarm.

Sibaúma is the quietest of the three villages and carries the longest memory. Its origins are not documented with certainty, but the village is widely understood to have begun as a quilombo — one of the communities founded across Brazil by people who escaped enslavement and built settlements beyond the reach of the plantations. Communities like these survived by choosing ground that was hard to reach, and Sibaúma's isolation behind river and dune was almost certainly the point. That same isolation is why it remains the least developed of the three today. To reach the beach at Barra do Cunhaú, in neighbouring Canguaretama, you still cross the river from Sibaúma by boat.

The change began in the 1970s, when surfers found the point breaks below the cliffs. Word travelled the way it does among surfers — slowly, then all at once — and the fishing villages acquired first guesthouses, then restaurants, then a nightlife. The numbers describe an economy turned inside out. The municipality counted 16,929 residents in the 2022 census, a jump of nearly 49 percent in twelve years, and generated a gross domestic product of about 416 million reais in 2021, most of it from tourism and services rather than fish. Pipa now hosts a literary festival, FLIPIPA, that has run since 2009. New Year's Eve brings crowds from across Brazil and beyond. The boats still go out from Tibau do Sul, and the ferry still crosses the lagoon; it is simply that the village on the far shore is no longer the same village the ferry once served.