Les Éclaireurs Lighthouse: Ushuaia's Lighthouse on the Rocks

Built in 1919, on the lowest islet

The Argentine naval service put the tower into service in 1919. It stands on the lowest islet of the Les Éclaireurs group, a scatter of rocks and small islands in the Beagle Channel about 5 nautical miles east of Ushuaia. The tower is a brick and concrete construction, painted in the red and white bands you see on every postcard in town.

A reported visibility figure of 10 nautical miles circulates for the light, and we pass it on as reported rather than as an official specification, because no official Argentine naval page publishes a current data sheet in a form we can quote.

Unmanned and solar-powered

Nobody lives here. The tower is unmanned, and it runs on solar power today. There is no keeper's cottage to photograph, no ticket office and no jetty for tour boats.

That is why every visit is a pass-by: the catamarans slow down, swing close to the rocks so both sides of the deck get a view, and carry on to the sea lion and bird colonies. If a listing implied a landing, treat it with suspicion. The islets are protected as a wildlife area and the colonies on the neighbouring rocks are the reason boats keep their distance.

What the light actually does

The light marks the rocks for local traffic and marks the eastern approach to Ushuaia's harbour waters. For visitors it marks something else: the moment in a channel sailing when everyone on board crowds to one rail. Crews usually make two passes, once on the way out and once on the way back, so a missed photo on the first pass is not a disaster.

Hold your position on the windward side for the second one.

The colonies on the neighbouring rocks

The rocks around the tower carry two of the channel's reliable colonies. Cormorants nest here in numbers, both imperial cormorants and rock cormorants, and their white droppings are what bleach the islets so starkly in photographs. Sea lions haul out on the neighbouring rocks too, and boats give them a wide, slow arc.

Passengers occasionally report dolphins in the channel on calm days, though no schedule or guarantee exists for that. Keep the camera ready through the whole pass, not just for the tower.

The real Faro del Fin del Mundo is 180 miles east

Jules Verne's 1905 novel 'Le Phare du bout du monde', published after his death, is set at a lighthouse on Isla de los Estados, the island off the Atlantic end of Tierra del Fuego. The building Verne used is the San Juan de Salvamento lighthouse, built in 1884 and decommissioned in 1905. That structure, a modest wooden and iron building on a bleak headland, is the genuine 'Faro del Fin del Mundo', the Lighthouse at the End of the World.

It sits on Isla de los Estados, which is far beyond the reach of any Ushuaia day sailing, and reaching it is a serious expedition, not a three-hour cruise.

How the postcard tower got the nickname

The Les Éclaireurs lighthouse is the one Ushuaia visitors can actually see, and over the decades it quietly inherited the nickname. Tour operators call the pass the 'End of the World lighthouse' stop, postcards print the name across the tower, and the souvenir stamp sold in town says Fin del Mundo regardless of which lighthouse it pictures. The confusion is harmless for photography but it is factually wrong, and the municipal museum world knows it.

The Museo Marítimo even displays a replica of the true Faro del Fin del Mundo, which you can read about on our Museo Marítimo tickets page.

Why it matters to your booking

It matters in three small ways. First, if a tour title promises the 'End of the World lighthouse', it almost certainly means the Les Éclaireurs pass, not Isla de los Estados, so read the itinerary. Second, if the real thing is on your list, you need to know that no standard Ushuaia sailing goes there, and our page does not pretend otherwise.

Third, the history is a good story for the boat. The 1884 San Juan de Salvamento light predates this tower by 35 years, and Verne never saw either finished the way fiction remembers them.

Every classic navigation passes it

The classic channel navigations leave from the municipal pier area in central Ushuaia, and all of them route east past the Les Éclaireurs islets. The standard trip is a 2.5-3 hour navigation, with the tower as the turn-around landmark between the bird islands and the sea lion rocks. Our current cheapest listing is the classic navigation at $66.30 for 3 hours.

If you want the same tower with a slightly different island mix, the Gray Line navigation runs 3 hours at $90 and adds the Bridges Islands. Durations and prices are the tour listings'.

No landing, and why that is fine

You do not land at the lighthouse. Nobody does. The islets carry nesting cormorants and hauled-out sea lions, boats keep a legal and respectful distance, and there is nowhere to stand anyway.

The catamarans compensate by slowing to a crawl and rotating slightly so passengers on both sides get their photographs. If landing on something matters to you, note that some sailings include a short hike on Karelo Island or a viewpoint stop, which you can compare in the tickets table above.

Best light and camera advice

The light is best late in the afternoon, when the sun drops toward the mountains west of town and warms the red bands of the tower. Morning sailings get flatter light but often calmer water, which matters more if you are shooting handheld. Bring a telephoto lens or the longest zoom you own.

The boat holds a respectful distance from the islets, so the tower fills a corner of a wide frame and needs a decent zoom to isolate. A polarising filter helps with the grey-green channel water, and a strap you can drop in a hurry helps with the spray.

Combining the tower with penguins

In season, the penguin sailings run the same eastern channel route, pass the lighthouse and continue to Isla Martillo. The colony is occupied for breeding roughly from September or October through April, with the reliable visitor window from November to March, per the official sources on our Ushuaia penguins page. Those trips run about 5 hours, and they cover the tower, the sea lions and the penguins in one booking.

Our estimate is that the penguin sailing is the better value if the colony is open, and the short 3-hour navigation is the better pick outside the season.

Cormorants, two kinds

Imperial cormorants and rock cormorants both nest on the Les Éclaireurs group and the neighbouring islets. The imperial is the larger bird with the white breast and the striking eye ring, and it nests in tight rows on the flattest ledges. The rock cormorant is smaller and prefers the higher, steeper faces.

Both species leave the rocks white, and from a distance the guano reads as snow, which confuses first-time visitors in summer. The colonies are busiest in the breeding months of the austral spring and summer, and the birds are present year round.

Sea lions on the haul-outs

South American sea lions use the rocks around the islets as haul-outs, and the big males defend the best spots with a lot of noise and very little movement. Boats arc around the colonies slowly, both for the animals' sake and because a wake against a low rock is a photograph wrecker. Pups appear in the austral summer.

As with the cormorants, no landing and no feeding, which is the rule for all protected colonies in the channel.

What else shows up

Passengers and crews regularly report dolphins in the channel on calm days, and the bird list beyond the cormorants includes the kelp gulls and skuas that patrol any seabird colony in Patagonia. None of this is scheduled or guaranteed, and no official page publishes sighting statistics for the route. Treat anything beyond cormorants and sea lions as a bonus.

The reliable sightings are the reason the navigation sells itself. The rest is weather and luck.

The five corrections

These are the points worth correcting before you board, because they change what you book and what you tell people afterwards.