Reviewed · HIKING & TREKKING
Trekking to Emerald Lagoon
Laguna Esmeralda is reached by a relatively accessible hike from Ushuaia, but the real prize is the changing ground beneath your feet: peat bogs, rock, forest, and the Esmeralda River all lead toward a glacial lake colored by silt from Ojo del Albino Glacier. In summer, the water can turn a striking emerald green. In winter, it freezes and disappears beneath snow.
I like the simple half-day plan and the care taken with safety. You get hotel pickup, a box lunch, walking sticks, and a satellite tracking system, while guides adjust the pace for the group. I also like the low-plastic approach: bring a refillable bottle, and water is provided for refills. The main caution is firm: trekking boots and suitable clothing are required, and guides can refuse participation without them.
Key points to know before you book

- Five hours from hotel to hotel: The outing gives you a full taste of Tierra del Fuego without taking the entire day.
- The emerald color is seasonal: Summer offers the best chance to see the lagoon’s famous color. In winter, it is frozen and snow-covered.
- The route crosses wet and rough ground: Expect peat bogs, rocks, forest paths, and river-side walking, not a smooth urban trail.
- Josephina has earned special praise: Her warm, attentive guiding and ability to match the group’s pace are useful qualities on this hike.
- Boots are not optional: Casual footwear can put both comfort and participation at risk.
- Lunch and safety gear are included: A box lunch, walking sticks, hotel transport, and satellite tracking add real value to the $135 price.
From Ushuaia to Tierra Mayor Valley

The day begins with pickup at your accommodation in Ushuaia. The exact collection time is sent by WhatsApp the day before, which is helpful because pickup times can vary. You do not need to make your own way to a distant trailhead or sort out transport through the valley.
The drive heads north for about 20 minutes. That short transfer matters. You leave the southernmost city in the world quickly, trading streets and buildings for the open setting of Tierra Mayor Valley. This is one of the reasons I see the excursion as a good choice for a first outdoor outing around Ushuaia: the time spent getting to the trail is limited, so most of the five-hour schedule can go toward walking and enjoying the setting.
Once you arrive, the guide explains the route and the conditions for the day. The trail is clear and marked, though the ground changes with the season. This is not a paved path or a gentle stroll through a formal park. Your feet may meet soft peat, uneven rock, forest floor, and damp sections.
That variety gives the walk its character, but it also explains the footwear rule. The tour description mentions sports shoes in the packing advice, yet it also says trekking boots are mandatory and that guides may turn people away without proper footwear and clothing. I would follow the stricter instruction and bring solid trekking boots, preferably already broken in. This is one place where saving space in your bag can create a bad day.
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Crossing peat bogs and rocky ground

The first part of the hike crosses Tierra Mayor Valley. The trail is marked, but the experience depends on conditions and season. Peat bogs can be soft and wet, while rocky sections call for steady footing. You should expect a real trek, even though this is described as one of the more accessible hikes near Ushuaia.
The word accessible here should not be confused with effortless. You need to be comfortable walking for several hours over uneven ground. Children under 10 are not accepted, and the activity is not suitable for pregnant women. Those limits are sensible given the terrain and the lack of smooth, level footing throughout the route.
Guiding makes a difference on a route like this. A good guide can point out where the ground is firm, help the group keep a sensible pace, and explain the plants and scenery along the way. The strongest praise attached to the experience goes to Josephina, who is described as attentive, enthusiastic, and able to answer questions while adapting to different walking speeds. She may not lead every departure, but her qualities give you a useful idea of what to value in the guiding: patience matters as much as information when a group moves over boggy ground.
Walking sticks are supplied. I like this inclusion because poles are useful on wet patches and rocks, not just on steep climbs. You also have satellite tracking support, an extra safety measure in a remote-feeling setting. The equipment does not remove the need for sensible clothing, but it shows that the operator treats the route as an outdoor activity rather than a casual photo stop.
Forest, plants, and the Esmeralda River

After the valley sections, the route continues through more forest. The trees change the feel of the walk. Open valley views give way to a closer, quieter path, with Tierra del Fuego’s plant life forming part of the experience rather than serving as decoration around the lagoon.
The supplied highlights specifically call attention to the flora. That is worth noting if you enjoy observing the details of a trail. The walk is not only about reaching a colored lake as quickly as possible. You move through several types of ground and vegetation, and the guide can provide context in either Spanish or English.
Eventually, the trail follows the Esmeralda River. This is a natural turning point in the hike. The river provides a clear route toward the lagoon and gives you a changing view as you approach the final destination. The walk has a pleasing sense of progress: valley first, then bogs and rocks, then forest, then the river leading you farther into the setting.
You should keep your expectations practical. The information does not promise a long talk about botany or a specialist naturalist presentation. It does promise a guide and highlights the flora. I would think of this as a guided nature walk with useful interpretation, not a dedicated scientific tour.
Reaching Laguna Esmeralda

The destination is a small glacial lake called Laguna Esmeralda. Its color comes from sediments carried from the Ojo del Albino Glacier. In summer, those sediments can give the water its famous emerald tone, which explains the name and the appeal of the hike.
This seasonal detail is important when you decide when to go. Summer is the time to aim for the clearest view of the emerald color. In winter, the lagoon freezes and is covered with snow. That winter version may still be beautiful, but it is a different scene. If the specific green color is your main reason for booking, summer gives you the best chance.
The view is also tied to the effort needed to reach it. You have crossed wet ground, rocks, trees, and the river route before the lake opens up. That makes the arrival feel earned, without requiring a full-day expedition. The hike’s appeal is not only the final photograph. It is the gradual change from city to valley to forest to glacial water.
The phrase your postcards will turn into real postcards is a fair way to describe the visual draw, but keep the weather and season in mind. The information provided does not promise a particular color every day, and the lagoon’s appearance changes with the time of year. You are booking a scenic trek to a glacial lake, not a guarantee of one exact shade.
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Box lunch beside the lagoon

At the lagoon, you stop for a box lunch and time to enjoy the view. Having food included is useful on a five-hour outing. You do not need to carry a large meal or rush back because you have not planned for food.
The lunch also creates a natural pause. A hike is easier to enjoy when the destination is not treated as a quick picture stop. You can sit, take in the lake, and regain energy before returning along the trail. One particularly positive account describes the lunch as tasty, which suggests that the food is more than a token snack, though the exact contents are not specified.
Bring your refillable water bottle. The operator supplies water for refills before the trek, but a bottle itself is not included. This is a small point that can easily be missed when packing. The refill plan reduces disposable plastic and fits the setting well. It also means you should not arrive expecting a single-use bottle to be handed to you.
Do not bring luggage or large bags. A daypack with personal essentials is the sensible choice, but the provided rules specifically exclude large bags. Keep what you carry compact enough for walking over uneven ground.
The return walk and ride back to Ushuaia

After lunch, you return by the same general route. The path may feel more familiar on the way back, but the return still requires care. Wet ground and rocks do not become easier simply because you have already crossed them.
The return is a chance to notice details you missed while heading toward the lagoon. Light, weather, and your own pace may make the valley look different. The route also gives you a final chance to appreciate the forest, plants, peat, and river before meeting the vehicle.
Once the walk ends, transport takes you back to Ushuaia. Hotel drop-off is included, so the excursion works well if you have evening plans or want a straightforward half-day activity. The five-hour duration is long enough to feel substantial but short enough to leave room for another part of your Ushuaia schedule.
The exact timing depends on the departure and the group, so I would avoid booking an important fixed appointment immediately afterward. Still, the 20-minute transfer to the trailhead and included return transport make this a fairly efficient way to see the area beyond the city.
What the $135 price delivers

At $135 per person, the value depends on how much support you want. You are paying for hotel pickup and drop-off, a bilingual guide, a marked route through changing terrain, walking sticks, satellite tracking, and a box lunch. You also avoid arranging a vehicle to the trailhead and trying to judge the route alone.
For a confident hiker with transport, equipment, and trail knowledge, an independent outing could cost less. But this is not just a walk to a viewpoint. The ground can be wet and rocky, the weather can change, and the route leads through a remote natural setting. The included guide and transport remove several practical problems.
The strongest value is for someone who wants a managed experience but does not want a full-day commitment. The tour also works well for mixed-pace groups because the guide can adjust the speed. Josephina’s praised approach, adapting to each person and answering questions, is exactly the kind of service that makes a guided trek worth paying for.
The weak point is that equipment is not all-inclusive. Trekking boots and clothing are your responsibility, and the water bottle is not provided. If you need to buy outdoor gear specifically for this outing, add that cost before deciding.
Who should book this trek?

I would recommend it to adults and children over 10 who are comfortable with several hours of walking on uneven terrain. It suits you if you want one of Ushuaia’s major natural sights without giving up an entire day, and if you value a guide who can explain the route and manage the group.
It is also a good match for people who enjoy scenery in stages. The destination is attractive, but the route provides much of the interest through peat bogs, rocky ground, forest, river, and plant life. If you only want an easy stroll on a firm surface, choose something less demanding.
You should think twice if you lack trekking boots, dislike wet or uneven ground, or need a fully accessible path. The operator can refuse participation when footwear or clothing is unsuitable, so this is not an activity where you can simply show up in ordinary sneakers and hope for the best.
Booking flexibility is useful. You can cancel up to 24 hours before departure for a full refund, and reserve now while paying later. Those terms help if your Ushuaia schedule or weather plans are still shifting, though they do not change the physical requirements of the hike.
Should you book Laguna Esmeralda?

Book this trek if you want a manageable but genuine outing beyond Ushuaia, with transport, food, equipment support, and a guide included. The emerald color is most likely to reward summer visitors, while winter offers a frozen, snow-covered version of the same glacial destination.
The best reason to choose it is the balance: five hours, a memorable lake, varied ground, and enough support to keep the day practical. Just bring proper trekking boots, suitable clothing, a refillable bottle, and a willingness to walk over bogs and rocks. If you do that, the $135 price is reasonable for a guided introduction to Tierra del Fuego’s wild side.
FAQ
How long does the Laguna Esmeralda trek take?
The activity lasts five hours, including the trek, time at the lagoon, lunch, and transportation to and from Ushuaia.
Where is the trek located?
The trek takes place in Tierra del Fuego, Argentina, north of Ushuaia in the Tierra Mayor Valley.
How far is the trailhead from Ushuaia?
The vehicle journey to the starting point takes about 20 minutes from the city.
Is hotel pickup included?
Yes. Pickup and drop-off at your accommodation are included. The exact pickup time is sent by WhatsApp the day before.
What languages does the guide speak?
Guides are available in Spanish and English.
Is lunch included?
Yes. A box lunch is provided and eaten while you enjoy the view of Laguna Esmeralda.
Do I need trekking boots?
Yes. Trekking boots are mandatory. Guides may refuse to take you if you arrive without suitable footwear and clothing.
Do I need to bring a water bottle?
Yes. You should bring a refillable bottle. Water is provided for refills, but the bottle itself is not included.
Who should not take this activity?
The trek is not suitable for pregnant women or children under 10. It is also not suitable for people without the required trekking footwear and clothing.
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