Ilha Grande lies 153 kilometres south of Rio de Janeiro's international airport, separated from the mainland by a seven-kilometre strait that prohibits private vehicles on the island itself. The journey requires coordination between three distinct transport modes: airport departure, coastal highway transit to Angra dos Reis or Conceição de Jacareí, and final speedboat or ferry passage across the Baía da Ilha Grande. The island's vehicle ban, enacted in 1994, transformed what was once a penal colony and leper hospital into a car-free sanctuary where 86 percent of the landmass remains Atlantic rainforest. Rio de Janeiro airport to Ilha Grande transfer logistics hinge on departure timing. The last public ferries from Angra dos Reis depart at 17:30 on weekdays and 15:30 on weekends. Shared shuttle services coordinate road segments of 160 to 180 minutes with speedboat operators who maintain hourly schedules until dusk. The pier at Conceição de Jacareí serves as the primary embarkation point for Vila Abrão, the island's main settlement, while Angra dos Reis port handles both public ferries and private speedboat charters. Traffic density on the Rio–Santos highway fluctuates sharply: morning departures between 07:00 and 09:00 clear the urban bottleneck before beach-bound weekend traffic accumulates. The geographic isolation that once made Ilha Grande a natural prison now defines its appeal. No ATMs operate on the island. Mobile coverage remains patchy beyond Vila Abrão. The TPA environmental preservation fee — collected on arrival, not during transfer booking — funds trail maintenance across 16 official hiking routes. Speedboat crossings take 25 minutes in calm conditions, double that in southeast swells. Shared transfers consolidate airport pickups into fixed departure windows, reducing per-passenger costs but requiring flexibility on exact timing. Private charters offer door-to-dock service but command premiums justified only for groups of four or more. Galeão International Airport remains the primary gateway, though Santos Dumont handles regional connections. Both airports feed into the same coastal corridor. The absence of bridge access or vehicular infrastructure on Ilha Grande means every visitor, regardless of budget, completes the final leg by water. That constraint has preserved what two centuries of colonial exploitation, disease quarantine, and maximum-security incarceration failed to destroy.