Isla de Lobos & Isla Gorriti

Two islands, two different day trips

Punta del Este's port isn't just a marina and a fish market — it's also the departure point for two of the coast's best day trips, and they couldn't be more different from each other despite sitting within sight of the same peninsula. Isla de Lobos is the farther, wilder of the two: an uninhabited island given over almost entirely to one of the largest sea lion and fur seal colonies in the Western Hemisphere, visited strictly by boat tour since landing is restricted to protect the wildlife. Isla Gorriti is the closer, gentler option: a short ferry crossing away, open to landing, with calm beaches and the stone ruins of an 18th-century Spanish fort scattered through its forest trails.

Choosing between them — or fitting both into a longer stay — comes down to what kind of day you want. Isla de Lobos rewards travelers chasing wildlife and a genuinely offshore, boat-tour experience; Isla Gorriti suits a more self-directed half-day built around beach time, a picnic, and a bit of colonial history underfoot. Neither requires more than a morning or afternoon, which makes either an easy add-on to a Punta del Este stay rather than a full day sacrificed to logistics.

Both islands sit inside Maldonado Department's waters and have been shaped by very different histories — one by wildlife that simply never left, the other by a Spanish colonial defense strategy aimed at protecting the Río de la Plata's approach from rival European powers. That contrast is worth keeping in mind as you read on: this is as much a history lesson as a wildlife outing, depending which island you choose.

Isla de Lobos: a working wildlife colony, not a tourist installation

Isla de Lobos sits roughly 8 kilometers off the coast of Punta del Este, a small island of well under 50 hectares that punches enormously above its size when it comes to wildlife. It's home to one of the largest colonies of South American sea lions and South American fur seals anywhere in the Western Hemisphere — historical counts have put the sea lion population in the hundreds of thousands at points, alongside a smaller fur seal population, making it one of the single most significant marine wildlife sites on this entire stretch of South American coast, not just a local curiosity.

That scale is a genuine conservation story as much as a tourist draw. The colony survived a long and brutal commercial hunting era — historical records document roughly half a million sea lions killed on and around the island between the 1870s and the late 1940s, part of a wider regional sealing industry that treated the colony as a harvestable resource for decades. A hunting ban introduced in the early 1990s let the population begin recovering, and the colony visitors see today is very much a conservation success story built on top of that earlier near-collapse, rather than a population that was always simply left alone.

That history is part of why access to Isla de Lobos is tightly restricted today. Landing on the island isn't permitted for general visitors — the whole point is to protect a wildlife colony that's still recovering its historical numbers, not to build tourist infrastructure on top of it. Boat tours circle the island's waters close enough for a genuinely good look and plenty of photographs, but the colony itself is observed rather than walked among, which keeps human disturbance to a minimum during breeding and pupping periods.

In August 2024, that informal protection was formalized: Uruguay's government declared the waters surrounding Isla de Lobos a national marine protected area, recognizing both the island and its submerged surroundings as a site worth safeguarding at a national level rather than leaving its conservation to informal custom alone. It was a significant step for a country whose marine protected area network had, until then, lagged behind its reputation for environmental stewardship on land, and it puts Isla de Lobos in a genuinely different regulatory category from most of the coast's other offshore sights.

The lighthouse: a real landmark, with one claim worth hedging

Rising above the sea lion colony is Isla de Lobos' other well-known feature: a lighthouse, the current structure dating to 1906, standing 59 meters tall — a genuinely imposing tower for a small offshore island, and easily one of the most recognizable silhouettes on this stretch of the Uruguayan coast. It has guided ships around this stretch of the Río de la Plata's approach for well over a century, and its height alone makes it a landmark visible from a considerable distance out at sea.

You'll frequently see it described as South America's tallest lighthouse, and it's easy to understand why the claim sticks — at 59 meters it genuinely is among the tallest lighthouses anywhere on the continent. But it's worth treating that specific superlative with a bit of care rather than repeating it as settled fact: other lighthouses in the region, including Brazil's Farol de Mucuripe in Fortaleza at roughly 73 meters, are taller by a meaningful margin, and various sources disagree about exactly which structure holds the outright record depending on how "lighthouse" is defined and measured. The safer, still genuinely impressive claim is that Isla de Lobos' lighthouse is among the tallest in South America — a fair description of a real landmark — rather than the tallest, full stop.

None of that hedging diminishes the lighthouse as a sight. Seen from a boat tour circling the island, its scale against the low, rocky terrain around it is dramatic regardless of exactly where it ranks on a list of continental superlatives, and it remains a working aid to navigation on one of the busier shipping approaches on this coast, not simply a decorative landmark.

Isla Gorriti: closer, landable, and steeped in colonial defense history

Isla Gorriti sits far closer to the peninsula than Isla de Lobos — close enough that it's reached by a short ferry crossing rather than a longer boat tour, and close enough that many visitors treat it as a half-day outing rather than a planned excursion. Unlike Isla de Lobos, landing is permitted here, and the island offers real, walkable beaches alongside forest trails that wind past its historical ruins — a genuinely different, more self-directed kind of visit than circling Isla de Lobos' wildlife colony by boat.

The island's name traces back to the mid-18th century, after Captain Francisco de Gorriti, who was briefly held on the island around 1751–1753 following a dispute over funding for a campaign against local indigenous groups — before that, it had gone by other names, including a reference to the yatay palms once found here. That naming history is a small footnote next to the island's larger role in the colonial period: sitting at the mouth of the Río de la Plata, Gorriti was recognized early on as a strategically valuable point for controlling access to the estuary, and Spanish colonial authorities began fortifying it in earnest during the 18th century in response to rival Portuguese, Dutch and English interest in the same waters.

The result is the Batería de Santa Ana, the island's best-known historic site: the ruins of an artillery battery whose stone fortifications and gun positions were first established in 1762 under orders from Pedro de Cevallos, then the Spanish governor of Buenos Aires, specifically to counter Portuguese expansion into the region. The battery was reinforced over subsequent decades as the threat picture shifted, and its remains — walls, old cannons, and the outline of a small colonial-era cemetery — are still walkable today via trails through the island's forest, alongside occasional information panels explaining what visitors are looking at.

In December 1984, in recognition of that history, Isla Gorriti was declared a Monumento Histórico Nacional — a formal acknowledgment that the island's ruins carry genuine national heritage value, not just a scenic backdrop for a beach day. Combining the two — a swim or a picnic on Gorriti's calmer, less crowded beaches, followed by a walk through genuine 18th-century fortification ruins — is what makes this island's day trip feel like more than just an easier, closer alternative to Isla de Lobos.

• A short ferry ride from the peninsula's port — much closer than Isla de Lobos.
• Landing is permitted; visitors can walk the beaches and forest trails freely.
• The Batería de Santa Ana ruins — 18th-century Spanish fortification, first built 1762.
• Declared a national historic monument in 1984.

Which island suits your day

If you have time for only one, the choice largely comes down to what you actually want from the excursion. Isla de Lobos suits travelers prioritizing wildlife above all else — this is a genuinely significant sea lion and fur seal colony, not a minor sighting, and the boat tour itself, with its close pass along the rocky shore and the lighthouse rising behind it, is worth the slightly longer crossing and higher cost that a wildlife-focused tour typically carries. It's the better choice for anyone who wants their day defined by animals rather than history or a swim.

Isla Gorriti suits almost everyone else: travelers who want an easier, cheaper, more flexible half-day; anyone traveling with young children who'd rather let them run on a beach than sit still on a wildlife-viewing boat; and history-minded visitors who want to actually walk among ruins rather than view a landmark from offshore. It's also simply the more relaxed option — Gorriti doesn't demand a fixed tour schedule the way an Isla de Lobos wildlife excursion typically does, so a Gorriti day can flex around the rest of your Punta del Este plans far more easily.

Given how close both islands sit to the peninsula, a longer stay can comfortably fit both — a wildlife-focused morning at Isla de Lobos on one day, and a relaxed beach-and-ruins afternoon at Isla Gorriti on another, without either feeling rushed or in competition with the rest of a Punta del Este itinerary.

• Wildlife is the priority — choose Isla de Lobos, and budget a proper tour rather than a rushed pass-by.
• Traveling with young children, or want a flexible, low-cost half-day — choose Isla Gorriti.
• History and colonial-era ruins interest you — choose Isla Gorriti for the Batería de Santa Ana.
• Only one afternoon and a strong pull toward the sea lion colony — Isla de Lobos, but check tour timing carefully, since it's a longer excursion than Gorriti.
• A multi-day stay with room to spare — do both, on separate days, rather than trying to combine them into a single rushed outing.

Planning a visit: boats, timing and what to bring

Both islands are reached by boat from Punta del Este's port, and that's about as far as this page will go in describing specific logistics — boat operators, departure schedules and fares on this coast change season to season, and naming a specific company or price here would be stale before long. What's reliably true is the shape of the choice: Isla de Lobos is visited via a longer, guided boat tour that circles the island's waters (landing isn't permitted), while Isla Gorriti is reached via a shorter ferry crossing that lets you disembark and explore independently. Confirm current operators, departure points and prices at the port itself, or through your accommodation, in the days before you plan to go.

Summer (December–March) brings by far the most frequent departures for both islands, in keeping with the whole coast's seasonal rhythm — outside that window, and especially in winter, schedules for both routes thin out considerably, and it's worth confirming that a boat is running at all before building a day trip around either island. If a specific island visit is the whole point of your trip and your dates are flexible, planning around the Southern Hemisphere summer gives you the best odds of reliable, frequent service.

Pack accordingly for whichever island you choose: sun protection, water and comfortable shoes for Isla Gorriti's forest trails and fort ruins; and for Isla de Lobos, be ready for a genuinely breezy, open-water boat ride even on a calm-seeming day, since the crossing sits fully exposed to the Río de la Plata's approach to the Atlantic. Neither trip requires special gear beyond ordinary beach-day sun and weather preparation, but the Isla de Lobos crossing in particular rewards dressing a layer warmer than the beach itself might suggest.

• Isla de Lobos: a longer, guided boat tour, no landing — book through a current operator rather than expecting a walk-up option outside peak summer.
• Isla Gorriti: a shorter ferry crossing, landing permitted, more flexible timing.
• Both run most frequently in the Southern Hemisphere summer (December–March); confirm schedules directly in the off-season.
• Bring sun protection, water and comfortable shoes; expect a breezier ride out to Isla de Lobos than the calm beach conditions on the peninsula might suggest.

Quick answers before you go

A handful of questions come up often enough when planning a visit to either island that they're worth answering directly.

• Can I land on Isla de Lobos? No — access is restricted to protect the sea lion and fur seal colony; visits are by boat tour that circles the island's waters rather than a landing excursion.
• Can I land on Isla Gorriti? Yes — it's open to visitors, with beaches and forest trails leading to the fort ruins.
• Is Isla de Lobos' lighthouse really South America's tallest? It's genuinely among the tallest, at 59 meters, but the outright "tallest" title is disputed by other lighthouses on the continent — treat it as one of the tallest rather than the confirmed record-holder.
• How long does each trip take? Isla de Lobos' boat tour typically runs a couple of hours round trip; Isla Gorriti's shorter ferry crossing allows for a more flexible half-day, since you can simply catch a later boat back.
• Which is better for kids? Isla Gorriti, by a wide margin — landing, beach time and a slower pace suit young children better than a wildlife-tour boat.
• Do I need to book ahead? In peak summer, yes, especially for Isla de Lobos' tours, which can fill up on busy days; in the off-season, confirm a boat is running at all before planning around either island.