Jujuy

Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center / Wikimedia Commons (Public domain)

This park preserves a significant portion of the Yungas cloud forest, offering humid jungle trails that climb into the mountains. Hikers can experience immense biodiversity, including diverse bird species and dense, lush vegetation.

Access. Located in Jujuy province; access is via the town of Libertador General San Martín.

Notes. The area is humid and can be muddy; check for seasonal trail closures due to rain.

Córdoba

Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center / Wikimedia Commons (Public domain)

As the highest peak in the Sierras de Córdoba, this mountain is a classic Argentine trekking challenge. The route takes hikers through diverse landscapes, including mountain streams, high-altitude meadows, and rocky summits.

Access. Commonly accessed via Villa Alpina, where hikers start the multi-day trek to the summit.

Notes. Guides are recommended for those unfamiliar with the mountain trails.

Córdoba

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This rugged mountain area in the Sierras de Córdoba offers challenging hiking trails leading to a historic abandoned mining village. The terrain is characterized by steep ascents, rocky outcrops, and hidden waterfalls along the river paths.

Access. Trailheads are typically accessed from the town of Merlo or Villa Alpina via 4x4 or long-distance trekking.

Notes. Requires navigation skills; the weather can be unpredictable in the high sierras.

Neuquén

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This active volcano region offers unique hiking trails that traverse volcanic landscapes, fumaroles, and geothermal fields. The area is famous for its therapeutic hot springs, which provide a perfect post-hike recovery.

Access. Accessible from the village of Caviahue, which serves as the base for exploring the volcano's slopes and surrounding geothermal park.

Notes. Check volcanic activity status and park alerts before planning a visit.

Salta

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This winding mountain pass offers dramatic high-altitude hiking through the transition zone between the arid Puna and the lush Yungas cloud forest. The trails provide sweeping vistas of the valley below and the surrounding jagged mountain peaks.

Access. Located along the route between Salta and Cachi; trailheads are accessible by road from the main mountain pass.

Notes. High altitude; be prepared for rapid weather changes.

Entre Ríos Province

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This park protects one of the largest yatay palm forests in the region, offering gentle walking trails through subtropical savanna and along the Uruguay River. It is a peaceful destination for nature walks and birdwatching.

Access. Located in Entre Ríos province, easily accessible by road from the town of Colón.

Notes. Best visited in spring or autumn to avoid extreme summer heat.

Misiones

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While famous for its massive waterfall system, the park features well-maintained jungle trails that allow visitors to walk through lush subtropical rainforest. These paths provide immersive views of the falls from various angles and levels within the dense canopy.

Access. The park is accessed via Puerto Iguazú; the trail system is highly developed with boardwalks and jungle tracks suitable for all levels.

Notes. Expect high humidity and heat; the area is a protected rainforest environment.

Neuquén

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This perfectly symmetrical, snow-capped stratovolcano offers a challenging ascent through volcanic scree and glaciers. It is a bucket-list climb for mountaineers and hikers looking to summit an iconic peak in the Northern Patagonian Andes.

Access. The trailhead is located within Lanín National Park, near Junín de los Andes; registration with park authorities is mandatory for the summit attempt.

Notes. Requires technical gear and physical fitness; summit attempts are subject to weather conditions and park permits.

Chubut

Los Alerces National Park — Wikidata / Wikimedia Commons

Home to some of the oldest trees in the world, this park offers serene forest treks through temperate Valdivian rainforest. The trails wind around crystalline lakes and through ancient Alerce forests, offering a quiet, immersive wilderness experience.

Access. Accessed via the town of Esquel; the park has several entry points for day hikes and multi-day trekking circuits.

Santa Cruz

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This iconic Patagonian destination offers world-class alpine hiking beneath the jagged granite spires of Mount Fitz Roy and Cerro Torre. Hikers traverse glacial valleys and moraines to reach turquoise lagoons, experiencing some of the most dramatic mountain scenery on Earth.

Access. Accessible via the mountain village of El Chaltén, which serves as the primary trailhead hub for the park's extensive network of day hikes and multi-day routes.

Notes. Weather is notoriously unpredictable; high winds and sudden storms are common even in summer.

Río Negro

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This iconic alpine region features a network of mountain huts (refugios) connected by challenging trails through granite peaks and glacial valleys. Hikers can traverse between huts like Refugio Frey or Jakob, enjoying dramatic ridgeline views and high-altitude lake vistas.

Access. Access is primarily from the mountain city of Bariloche, where most trailheads are a short drive or bus ride away.

Notes. Registration is mandatory for all multi-day treks; weather can change rapidly in the high mountains.

Chubut

Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center / Wikimedia Commons (Public domain)

While famous for marine life, the peninsula offers rugged coastal walking paths along dramatic cliffs and secluded beaches. These trails provide excellent vantage points for spotting whales and sea lions in their natural habitat.

Access. Accessible from Puerto Madryn, with various entry points into the provincial reserve.

Notes. Stay on marked paths to protect the fragile coastal ecosystem.

Jujuy

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This high-altitude desert valley is a UNESCO World Heritage site known for its striking multi-colored rock formations and ancient indigenous trails. Hikers can explore the dramatic canyon landscapes and arid plateaus that define the rugged geography of Northwest Argentina.

Access. Accessed via the town of Tilcara or Humahuaca, which serve as bases for exploring the surrounding gorge trails and high-altitude paths.

Notes. High altitude can cause physical strain; ensure proper acclimatization before attempting longer treks.

La Rioja

Earth Science and Remote Sensing Unit , Lyndon B. Johnson Space Center / Wikimedia Commons (Public domain)

This park is renowned for its massive red sandstone walls and deep canyon systems that reveal millions of years of geological history. Walking through the canyon floor allows hikers to stand beneath towering cliffs and explore ancient petroglyphs.

Access. Located in La Rioja province, access is typically organized through guided tours or park-sanctioned transport to reach the canyon interior.

Notes. The area is extremely hot and arid; sun protection and water are critical.

Tierra del Fuego

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The southernmost national park in the world offers a unique blend of coastal hiking and sub-antarctic forest exploration. Trails wind along the Beagle Channel, providing dramatic views of rugged cliffs, peat bogs, and snow-capped peaks at the edge of the continent.

Access. Located a short drive from Ushuaia, the park is accessible by bus, taxi, or organized tour from the city center.