Two dirt tracks lead south from Porto Seguro and Trancoso. A regional bus makes the run when the roads are passable, though drivers also run fixed-price transfers - negotiate first, agree on a number, then relax for the ride. The truly energetic walk the 38 kilometers of beach between Trancoso and Caraíva, a day-long trudge that skirts cliffs, crosses small river mouths, and eventually delivers you to the ferry crossing by foot. The river itself is the last barrier: it cuts Caraíva off from the mainland road and keeps motor vehicles out of the village. There is no paved road, no landline, and until recently no grid electricity. Most bars and pousadas run generators that hum through the evening and switch off around bedtime. It is the kind of place where a flashlight is more useful than a phone.

Once across, the village has one speed. You walk everywhere because everywhere is close enough to walk, and the streets are soft sand that punishes anyone in a hurry. Stick to the harder edges where feet have packed the sand down; the middle of the track heats like a skillet in the afternoon sun and earns its reputation for burning bare soles. Locals warn arrivals about bicho-de-pé, a small burrowing parasite that prefers uncovered feet to shoes - harmless and easily treated, but a reason to keep your flip-flops on. The rhythm that emerges is one that Brazilians describe with a phrase hard to translate: tudo no seu tempo, everything in its own time. Meals take two hours. Plans made in the morning arrive in the afternoon. Even the tourists, a self-selecting mix of backpackers, musicians, surfers, and Brazilians on New Year holidays, settle into it within a day.

A short walk south down the beach leads to the Pataxó village of Barra Velha, one of the principal communities of the Pataxó people whose territory has faced Bahia's Atlantic coast since long before the Portuguese arrived in 1500. Pedro Álvares Cabral's fleet made its first landfall at what is now Monte Pascoal, visible on clear days as a low dark hump just inland, and the people it met were ancestors of the Pataxó living here today. Barra Velha welcomes visitors, and its members run guided walks, craft stalls, and tourism cooperatives that allow the community to share its culture on its own terms. Buying a woven basket or a clay piece from the maker who made it is not a souvenir transaction - it is an exchange with people whose land this has always been. Visit respectfully, ask before taking pictures of people, and pay what the craftspeople ask. These are the kinds of small acts that sustain a living culture rather than turning it into a museum.

Caraíva makes the best base for walking the southern Bahian coast. A few kilometers north, Praia do Espelho - the Mirror Beach, named for the polished calm of its low-tide pools - is frequently listed among the most beautiful beaches in Brazil. You can reach it by foot, by horse with a hired guide, or in the high season by a schooner that leaves from the river mouth at Caraíva's beach. The schooner trips also visit nearby reefs and smaller beaches that are not accessible by land; operations drop off sharply in the low season when the weather turns. Back in the village, evenings unfold on the sand. Bars pour caipirinhas and agua de coco under strings of bulbs powered by generators, fishermen push their boats off before dawn, and the Milky Way comes out so clearly over the ocean that the stars reflect faintly on the wet sand at the tide line. Whatever you brought with you to do, you will probably not get around to doing it. That, in Caraíva, is the whole idea.