Vila do Abraão is the tourist and historical heart of Ilha Grande. With about 3,000 residents, it is where the guesthouses, restaurants, markets, and the ferry arrival pier are concentrated. The town is pedestrian-only — there are no cars on the island. Must-see spots: the Church of São Sebastião, the Aqueduct, the Lazareto ruins, Praia Preta, and the Prison Museum (in Dois Rios). The village has 24-hour electricity, but bring cash, as there are few ATMs.