Reviewed · USHUAIA TOURS
Trekking Esmeralda Lagoon
Esmeralda Lagoon is reached by a muddy, beautiful walk through one of Tierra del Fuego’s main valleys. You cross a peat bog, enter a lenga forest, and follow a stream toward a cold mountain lake with glaciers behind it. I like the close contact with the forest and wetlands, and I like that a guide can steer you around the worst mud and explain local plants and wildlife. The main catch is simple: this is a real trek, not a gentle sightseeing stroll.
I also like the long return in the late light, when the valley can feel especially quiet. But you need waterproof winter clothes and sturdy boots, and you will be outdoors for the full six hours with no bathroom facilities. At the lagoon, even summer sun may come with strong wind and cold.
Key points to know before you book

- A five-hour trek leads to Esmeralda Lagoon: Most of the activity takes place on foot, with about 20 minutes of scenic driving each way.
- Mud is part of the experience: The trail crosses peat bog and can have deep, wet sections, especially around the forest and stream.
- A guide adds real value: Your guide helps choose firmer ground and shares details about Fuegian plants, animals, and beaver activity.
- The lagoon is cold and exposed: Pack for wind, rain, and sudden chill, even during the warmer months.
- Winter equipment has limits: Trekking poles are included, and crampons are supplied in winter, but clothing and boots are your responsibility.
- You need reasonable fitness: The excursion is not suitable for people with low fitness, mobility impairments, respiratory issues, or pregnancy.
From Ushuaia to the island’s northern valleys

The day begins with pickup at your hotel in Ushuaia. The vehicle heads north along National Route 3, away from the Beagle Channel and toward the interior of Tierra del Fuego. The drive to the walking area takes about 20 minutes, giving you a quick change from city streets to open mountain country.
That short transfer matters. You do not spend hours in a minibus before reaching the trail, yet you still get a taste of the island beyond Ushuaia. The route helps explain why this excursion feels different from a harbor cruise or a town tour. The focus is not on distant views from a vehicle. It is on moving through the ground, trees, water, and weather under your own power.
Hotel pickup is included from Ushuaia hotels, which makes the morning easier, especially if you are carrying warm layers and rain gear. The return follows the same general route after the walk. Starting times vary, so you need to check availability when booking.
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Crossing the peat bog

The walk begins across a peat bog, one of the defining features of Tierra del Fuego’s wet valleys. This is where the practical side of the trip becomes clear. Peat bog ground can look firm while giving way underfoot, and wet patches can collect in the trail’s hollows.
A guide is useful here for more than commentary. The route can have a great deal of mud, with holes and soft sections that are easy to miss. Your guide can point you toward firmer ground and help you keep a steady pace. That can save your boots, your balance, and your patience.
You should not arrive expecting clean, dry walking shoes. Waterproof boots are essential, not optional. Bring spare socks, too. The tour provides trekking poles, which are especially helpful on uneven or slick ground. In winter, crampons are included, but they do not replace waterproof clothing or proper boots.
The bog also gives the walk its character. Instead of rushing from a parking area to a viewpoint, you see how water shapes the valley. The ground feels soft and alive, and every step demands a little attention. If you enjoy straightforward hiking with changing footing, this will be part of the appeal. If you dislike mud, it may be the part you remember most.
Following the stream through lenga forest

After the bog, the route reaches a lenga forest. Lenga trees are a familiar part of the southern Patagonian woodlands, and the forest gives the trek a different mood from the open wetland. You follow a stream uphill, using the flowing water as a natural guide toward the lagoon.
The forest section is where a guided walk earns its keep. A good mountain guide can draw your eye to local plants and signs of animal activity that you might otherwise pass without noticing. The excursion specifically highlights the Fuegian flora and fauna, so you should expect the natural setting to be explained rather than simply passed through.
The stream also gives the route a clear sense of direction. You are not just walking through trees at random. You are gradually gaining ground beside moving water, with the valley opening toward the mountains. The pace is guided, and the full walking portion takes about five hours, including time at Esmeralda Lagoon and the return.
That duration calls for sensible preparation. Eat breakfast before pickup, carry any extra snacks you need, and use the supplied lunchbox as part of your plan rather than assuming you can buy food along the trail. There are no bathroom facilities during the outdoor portion, so plan accordingly before leaving Ushuaia.
Arriving at Esmeralda Lagoon
The reward is Esmeralda Lagoon, set among mountains at the end of the stream route. The setting brings together the main elements of the outing: wet valley, forest, water, rock, and distant glaciers. The lagoon is not treated as a quick photo stop. You have time to enjoy a snack with the mountains and glaciers behind you.
This is also the point where you should expect the weather to feel more demanding. A summer day can be sunny and still feel cold at the water, with strong wind blowing across the open area. Bring a hat, scarf, rain gear, and warm layers that you can add or remove as needed.
The included lunchbox has non-alcoholic drinks, which is useful after several hours outside. It is a modest but practical part of the package. You should bring extra food if you know you need more than a snack, since additional food and drinks are not included.
The lagoon is the high point of the trek, but it is not a resort-style viewpoint. There are no facilities, no café, and no sheltered visitor center waiting beside the water. You get a wild setting and a simple break. That tradeoff is worth understanding before booking.
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Beavers, dams, and the return in late light

The return uses the long sunset to show you another side of the valley. Instead of treating the walk back as dead time, the excursion keeps attention on the natural details around the trail. Beaver dams and beaver activity are part of the experience, along with the effects of these animals on the waterways.
This can be one of the more memorable details for anyone interested in how animals alter their surroundings. The dams are not decorative curiosities. They are working structures that change the flow of water and become part of the valley’s character. Your guide can help you notice them along the way.
The late light adds a pleasant finish, but it should not be confused with guaranteed warm weather. Tierra del Fuego can turn cold and wet quickly, and the trek remains an outdoor activity until you return to Ushuaia. Keep your rain layer accessible rather than buried at the bottom of your bag.
After the walk, you return to the vehicle and travel back to the city, again with about 20 minutes of scenic views along the way. The schedule allows roughly six hours overall, with about five hours devoted to the guided visit and walking program.
What the $145 price includes

At $145 per person, this is not the cheapest way to see the area around Ushuaia. The value depends on how much help and equipment you want. You receive hotel pickup and drop-off, a mountain guide, a lunchbox with non-alcoholic drinks, trekking poles, and winter crampons when conditions require them.
The guide is the most important inclusion. The trail can be walked independently, but the mud, holes, stream crossings, and changing footing make route judgment useful. A guide also adds context about the local plant and animal life, including beavers and the dams they build. If you are comfortable finding your own way and already have the equipment, the price may feel high. If you want transport, route support, and a planned meal in one package, it is easier to justify.
Winter crampons are included during the winter season, but do not mistake that for a full clothing rental. Winter clothes, waterproof boots, and other personal gear are not supplied. You must budget for those items if you do not already have them.
The tour also offers free cancellation up to 24 hours before the activity and a reserve-now, pay-later option. Those terms help if your Ushuaia schedule depends on weather or changing plans, but they do not remove the need to check the conditions and your own readiness before setting out.
What to wear and carry for a wet mountain day

The packing advice here is serious because the trail is exposed to water, mud, wind, and cold. Wear waterproof winter clothing and waterproof boots. Bring warm layers, a hat, rain gear, snow clothing when appropriate, socks, a scarf, and warm shoes.
A useful approach is to dress in layers. You may warm up while walking through the forest, then need extra protection at the lagoon or during a windy stop. Keep rain protection easy to reach. Once clothing gets wet, the rest of the trek becomes harder.
Trekking poles are supplied, so you do not need to bring your own unless you prefer a particular pair. In winter, crampons are included. Extra food and drinks are not included, and personal expenses are your responsibility, so pack anything beyond the provided lunchbox that you will need.
The lack of bathrooms deserves its own reminder. You are in nature for the entire outdoor portion, with no facilities along the route. Use the bathroom before departure and be prepared for a basic wilderness setting.
Fitness, safety, and who should skip it
You need to be in good physical condition for this excursion. Five hours on uneven, muddy ground is a different demand from a short walk to a viewpoint. The route includes a bog, a forest climb beside a stream, and a return walk, so you should be comfortable walking for several hours in changeable weather.
The activity is not suitable for pregnant women, people with mobility impairments, people with respiratory issues, or people with a low level of fitness. Those restrictions are worth taking seriously. A walking stick and a guide can help with footing, but they cannot turn a demanding trek into an easy outing.
The experience suits you best if you want a full day outside and enjoy natural details more than polished facilities. It is a good match for hikers who want an organized route into the Fuegian forest without arranging transport, food, and equipment support themselves.
It is a weaker match if your priority is comfort, dry paths, indoor shelter, or a short walk. The mud is not an occasional nuisance. It is part of the route, and the cold wind at the lagoon can surprise you even in summer.
Spanish and English guiding

The tour is offered with live guiding in Spanish and English. That matters on a route where clear instructions can help you choose safer footing, understand the pace, and notice the area’s wildlife and plant life.
No individual guide names are provided, so you should not book this expecting a particular person. What you can count on is a mountain guide assigned to lead the route, explain the setting, and help with the trail’s more difficult sections.
The guide’s practical role may be more valuable than a long stream of facts. On a muddy path, knowing where to place your next step is useful. At the lagoon, an explanation of the surrounding environment adds meaning to the stop. The best part of the guiding is the combination of those two jobs.
Should you book Trekking Esmeralda Lagoon?
Book this excursion if you want a genuine half-day walk through Tierra del Fuego, you are fit enough for five hours on wet and uneven ground, and you have the right clothing. The forest, peat bog, stream, lagoon, glaciers, beaver dams, and late light give the day plenty of variety.
Think twice if you want an easy nature outing or if you lack waterproof boots and winter layers. The $145 price makes the most sense when you value hotel transport, a mountain guide, poles, food, and winter crampons as one organized package.
My practical advice is to choose this tour for the walking itself, not just the lagoon photograph. If muddy trails and cold wind sound like part of the fun, Esmeralda Lagoon offers a rewarding way to meet Tierra del Fuego on its own terms.
FAQ
How long does the Esmeralda Lagoon excursion last?
The activity lasts six hours, including about 20 minutes of scenic driving each way and around five hours for the guided visit and trek.
Where does pickup take place?
Pickup and drop-off are provided from your hotel in Ushuaia.
Is a guide included?
Yes. A mountain guide is included, and live guiding is available in Spanish and English.
What food is provided?
You receive a lunchbox with non-alcoholic drinks. Extra food and drinks are not included.
Are trekking poles and crampons provided?
Trekking sticks are included. Crampons are included during the winter season.
What clothing should I bring?
Bring warm clothing, a hat, rain gear, snow clothing, socks, a scarf, and warm shoes. You must wear waterproof winter clothes and boots, which the operator does not provide.
Is the trek suitable for all fitness levels?
No. You need good physical condition. The activity is not suitable for pregnant women, people with mobility impairments, people with respiratory issues, or people with a low level of fitness.
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