Islands Closest to the South American Mainland

The islands nearest to South America lie along its northern and western margins:

Southern Caribbean (Leeward Antilles) — Off Venezuela & Colombia

• Trinidad & Tobago: 11 km (7 mi) from Venezuela at closest. Trinidad continental shelf geology.
• Aruba, Curaçao, Bonaire (ABC Islands): 25–80 km off Venezuela. Arid, Dutch constituent countries.
• Los Roques, Las Aves, La Orchila (Venezuela): Federal dependencies, coral atolls/islands.

Colombian Caribbean

• San Andrés & Providencia: ~750 km (465 mi) NW of Colombian mainland, but politically Colombian. Closer to Nicaragua.

Pacific

• Galápagos Islands (Ecuador): ~970 km (600 mi) west of mainland. Volcanic, unique endemic fauna.
• Malpelo, Gorgona (Colombia): Remote Pacific islands, marine parks.
• Juan Fernández Islands (Chile): ~670 km west. Robinson Crusoe setting.

Southern Tip

• Tierra del Fuego Archipelago: Shared Chile/Argentina. Islands *are* the continental margin.
• Falkland Islands (Islas Malvinas): ~480 km (300 mi) east of Patagonia. UK territory, claimed by Argentina.

Closest overall: Trinidad (11 km) and the ABC Islands (25–80 km) off Venezuela.