Plizio Visual Lab

Lake Sandoval

Plizio editorial teamUpdated: Jun 2026Data Sources

Lake

Weather…

Lake Sandoval is a striking oxbow lake located within the Tambopata National Reserve in the Madre de Dios region of southeastern Peru. It was formed when a meander of the Madre de Dios River became cut off from the main channel, creating a tranquil and nutrient-rich aquatic habitat. The lake is framed by dense swamps of Mauritia flexuosa palms, known as 'aguajales,' which are essential for the local food chain. Sandoval is world-famous for its resident family of giant river otters, one of the most endangered mammals in the Amazon, which can often be seen frolicking and hunting in the water. The lake is also home to large black caimans, several species of monkeys, and an incredible variety of tropical birds, including the prehistoric-looking hoatzin. Reaching the lake involves a 3-kilometer hike through primary rainforest, ensuring that the environment remains peaceful and relatively undisturbed by heavy traffic. As one of the most accessible yet pristine lakes in the region, Sandoval remains a premier destination for wildlife observation and nature photography in Peru.

Location: Peru
Nearby: Puerto Maldonado (16 km)

Best time to visit & climate

The most pleasant time to visit is Jun–Aug.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	25	25	25	25	24	23	23	25	27	28	27	26
Rain mm	333	336	239	167	92	60	49	52	69	161	196	332

📋 Practical info

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Getting there

Reaching this pristine oxbow lake usually starts with a motorized boat ride down the Madre de Dios River from Puerto Maldonado, followed by a guided hike through the dense jungle. The trail to the lake is typically a muddy and winding path, requiring travelers to walk roughly three kilometers inland.

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Best season

The dry season, which generally spans from May to October, is widely considered the best time to visit as the hiking trails are firmer and wildlife congregates around the shrinking water sources. The rainy season turns the jungle into a spirited green but makes the access paths extremely slippery and challenging.

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Terrain & paths

The surrounding area features classic Amazonian rainforest terrain, marked by thick undergrowth, enormous tree roots, and soils that are persistently damp or completely waterlogged. Movement on the lake itself is normally done via silent wooden canoes, paddled by expert guides to avoid disturbing the fragile ecosystem.

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What to bring

Essential items for this jungle excursion include highly effective insect repellent, breathable long-sleeved shirts, and long trousers to protect against relentless mosquitoes. Waterproof boots are practically mandatory for the muddy trail, while a quality pair of binoculars will vastly improve your wildlife spotting experience.

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Parking

There is obviously no parking at the lake itself; visitors must securely leave their vehicles in the city of Puerto Maldonado before transferring to river transport. Most registered tour operators provide safe, dedicated facilities or coordinate directly with local hotels where you can safely store your luggage and car.

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Safety

Safety largely depends on strictly following the instructions of your certified jungle guide, as wandering off the trail can easily result in getting terribly lost. Be aware of your surroundings, avoid touching unknown plants or insects, and adhere strictly to yellow fever vaccination recommendations before entering the region.

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Time needed

A thorough excursion to this striking reserve demands at least a full day, factoring in the river boat ride, the hike, and several hours paddling on the water. Many passionate nature lovers choose to stay overnight in nearby eco-lodges to experience the spectacular jungle sounds during dawn and dusk.

Geography

Coordinates

-12.60000, -69.04000

Facts

Lake Sandoval is roughly 3 kilometers long and 1 kilometer wide.
The lake is exceptionally rich in fish, including the red-bellied piranha.
It is considered one of the top five wildlife viewing spots in the Amazon basin.
The surrounding palm swamps act as a massive carbon sink.
Black caimans in Lake Sandoval can grow up to 5 meters in length.
Visitors must use non-motorized wooden canoes to explore the lake surface.