“Chile claimed Patagonia with 23 people, a wooden fort, and a flag raised above the Strait of Magellan in 1843. The reconstructed post still stands at that exact spot.”
About Fort Bulnes
Established by Chilean Captain John Williams Wilson in October 1843 aboard the brigantine Ancud, Fort Bulnes was the country's first permanent presence on the Strait of Magellan. Abandoned within a decade due to poor conditions, it was reconstructed in 1943 for the settlement's centenary.
Overview Fort Bulnes sits on a promontory above the Strait of Magellan, 60 kilometers south of Punta Arenas, where Chile first planted its flag on Patagonian soil in 1843. The reconstructed wooden fort — a compact cluster of barracks, a chapel, a watchtower, and a stockade — looks much as the original did when 23 soldiers and sailors arrived aboard the Ancud to claim the strait before Argentina could.
Overview Fort Bulnes sits on a promontory above the Strait of Magellan, 60 kilometers south of Punta Arenas, where Chile first planted its flag on Patagonian soil in 1843.
The Story Behind It The Chilean government, aware that both Britain and Argentina were eyeing the Strait of Magellan, moved quickly. The Ancud departed Chiloé in June 1843 carrying a small garrison under Captain John Williams Wilson — a Welsh-born officer in Chilean service — with orders to establish a physical presence at the strait's narrowest navigable point. The location proved poorly chosen for habitation: the soil was thin, the site exposed, and fresh water scarce. Within a decade the settlement had been relocated north to what became Punta Arenas. The original fort was abandoned and eventually fell. The current reconstruction dates from 1943, the centenary of the founding.
What You'll Experience The drive south from Punta Arenas along the Strait of Magellan is itself worthwhile — the road passes through Magellanic forest with views across to Tierra del Fuego. At the fort, the wooden structures are walk-through replicas with period furnishings and interpretive panels. A Chilean flag flies continuously from the watchtower. The promontory views of the strait are some of the most dramatic in the region.
Getting There Fort Bulnes is 60 kilometers south of Punta Arenas on Ruta Y-70. The drive takes about an hour. A tour operator pickup from Punta Arenas is the simplest option; self-drive requires a rental car.
Getting There Fort Bulnes is 60 kilometers south of Punta Arenas on Ruta Y-70.
The Experience
Walk-through barracks, a chapel, and a watchtower with a continuously flying Chilean flag — plus panoramic views of the Strait of Magellan and Tierra del Fuego across the water.
Why It Matters
Fort Bulnes represents the founding moment of Chilean sovereignty over Patagonia and the Strait of Magellan, a claim that shaped the country's southern border with Argentina.
Why Visit
The combination of genuine historical weight, an unusually dramatic coastal setting, and a manageable day-trip distance from Punta Arenas makes Fort Bulnes more rewarding than its modest size suggests.
✦ Insider Tips
- 1
Combine with Parque del Estrecho or the Penguin Colony on the same southern drive.
- 2
Wind on the promontory can be extreme — bring a proper jacket regardless of the city forecast.
- 3
The interpretive panels inside the fort are informative; budget extra time to read them.
