Patagonia, San Juan & More: Argentina’s Skies That Captivate Astrotourism Enthusiasts

In this article, discover the best places to enjoy astrotourism in Argentina—from Patagonia to the North—with updated information and useful links to plan your next star-filled getaway.

What is astrotourism and why is Argentina perfect for it?

Astrotourism is a form of nature tourism focused on observing the night sky. It can be done with the naked eye, through telescopes, or by participating in guided activities that blend science, education, and wonder. Argentina boasts a large number of certified dark-sky locations, astronomical centers, national parks, and lodgings specially equipped for stargazing adventures.

According to Argentina’s National Secretariat of Tourism, Environment, and Sports, some regions enjoy over 300 clear nights a year, making the country one of the best places to observe stars, constellations, meteor showers, and the Milky Way.

Astrotourism in San Juan: Clear Skies & Cutting-Edge Science

San Juan is considered a top hub for astronomical tourism in Argentina. With over 300 clear nights annually and minimal light pollution, this Cuyo province offers some of the best skies on the planet. The El Leoncito National Park, located in Calingasta, is home to two major international observatories: CASLEO (El Leoncito Astronomical Complex) and Carlos U. Cesco Observatory. Both offer guided tours, nighttime observation, and educational programs.

In 2019, San Juan was also a prime viewing point for the total solar eclipse, boosting the region’s infrastructure and astrotourism profile.

Where to go stargazing in San Juan:

San Juan, recognized as the National Capital of Astronomical Tourism, offers a variety of ideal sites for observing the night sky. These are some of the main places to enjoy astrotourism in the province:

El Leoncito National Park – Calingasta

Located in Calingasta, this park hosts:

• CASLEO: At 2,552 meters above sea level, this facility features powerful telescopes and offers daytime and nighttime visits, with optional dinner and accommodation packages.

• Carlos U. Cesco Station: Part of the Félix Aguilar Observatory, it offers both day and night tours and stunning views of Cerro Mercedario and Pampa del Leoncito.

Félix Aguilar Observatory – Chimbas

Located in Chimbas, it offers guided tours by appointment, including access to the Reinaldo Carestia Astronomical Museum, which displays historic instruments and educational materials.

Domingo F. Sarmiento Observatory – San Martín

In San Martín, the Ceferino Namuncurá complex offers weekend stargazing experiences paired with local cuisine at El Algarrobal restaurant (booking required).

Scenic Lookouts & Outdoor Stargazing Experiences

The province features astronomical viewpoints in several locations:

• Albardón: Offers nature walks, local cuisine, and solar observation.

• Ullum: At Las Tapias Hills, enjoy nighttime hiking, sky observation, and geology/paleontology activities.

• Zonda: The Sierras Azules host trekking and biking tours blending astronomy with adventure and native heritage.

For more info and reservations, visit the official San Juan tourism website.

Astrotourism in Patagonia: Southern Landscapes & Pristine Skies

Patagonia offers unspoiled nature, low population density, and crystal-clear skies—perfect conditions for astronomy. Notable sites in Chubut include the Trelew Astronomical Center and Los Alerces National Park.

Río Negro and Santa Cruz also provide unforgettable experiences. In El Bolsón, Bariloche, and El Calafate, visitors can enjoy stargazing hikes, astrophotography sessions, and guided talks. Tierra del Fuego allows for viewing the southern skies at the edge of the world—adding symbolic depth to the experience.

Top Patagonian Stargazing Spots:

Argentine Patagonia offers some of the most breathtaking astrotourism experiences in the country. Its combination of clear skies, low light pollution, and stunning natural landscapes makes this region an ideal destination for observing the night sky. Below is a selection of the best places to enjoy this activity:

• Trelew (Chubut): The Astronomical Center, located at the Egidio Feruglio Museum, offers educational and guided observation experiences.

• Los Alerces National Park (Chubut): With ancient forests, lakes, and mountains, this park hosts astrotourism activities in permitted areas.

• El Bolsón & Bariloche (Río Negro): These destinations offer nighttime hikes, outdoor workshops, and starlit experiences for all ages.

• El Calafate (Santa Cruz): Near the stunning Los Glaciares National Park, this area offers private stargazing tours, often paired with gourmet dinners or steppe walks.

• Ushuaia & Tierra del Fuego National Park: Experience stargazing in the world’s southernmost city, surrounded by remote natural beauty.

For more details on these astrotourism destinations in Argentine Patagonia, please see this article.

Astrotourism in Northern Argentina: Altitude, Culture & Stars

Northern Argentina also boasts excellent conditions for stargazing. In Salta, places like Cachi and the Puna region offer high altitudes and clear skies. Tucumán features the Ampimpa Astronomical Observatory, located in the Calchaquí Valleys, with programs for all ages and educational workshops.

The region adds cultural richness, where ancestral cosmology and local traditions enhance the spiritual side of astrotourism.

Top Northern Stargazing Spots:

Northern Argentina offers clear skies, high altitude, and a rich cultural heritage reflected in unique astronomical experiences. Below are some of the top places to enjoy astrotourism in this region:

• Ampimpa Observatory (Tucumán): Located in the Calchaquí Valleys, at 2,500 meters above sea level, this observatory offers educational activities and nighttime observations for all ages.

• Santa Rosa de Tastil (Salta): A historic village turned science and culture hub, offering unforgettable night sky experiences.

• Puna Region (Jujuy): With ultra-clear skies, this emerging destination is developing new tourism initiatives centered around the cosmos.

These destinations allow visitors to connect with the cosmos in unique natural and cultural settings, making northern Argentina another prominent region for astrotourism.

More Top Astrotourism Destinations in Argentina

Where to do astrotourism in Córdoba

Córdoba has become one of the emerging astrotourism destinations in central Argentina, thanks to its clear skies and internationally recognized offerings.

• Capilla del Monte: In this town in northern Córdoba lies the Villa Cielo Municipal Nature Reserve, the first accommodation in Argentina with a sky certified by the International Starlight Foundation. The natural surroundings and the area's mystique make every experience truly unique.

• Cerro Uritorco and surroundings: While better known for its spiritual symbolism, the Uritorco area is ideal for combining nighttime hikes with guided stargazing sessions.

Where to do astrotourism in Corrientes

Corrientes offers a unique astrotourism experience in the heart of nature, within one of Argentina’s most important reserves.

• Esteros del Iberá: The Iberá Starlight project provides guided astrotourism experiences across more than 750,000 hectares of protected land. Thanks to its remote location and lack of light pollution, you can clearly see stars, planets, and phenomena like meteor showers.

• Colonia Carlos Pellegrini: From this town, certified guides organize night tours that combine wildlife, open skies, and local culture.

Where to do astrotourism in Buenos Aires

Although not the ideal destination due to light pollution, the Buenos Aires province offers accessible options to start exploring astrotourism near the capital.

• Punta Indio: Just 150 km from Buenos Aires City, it is one of the most popular spots for sky-watching getaways. Its natural areas provide a clearer view of the night sky.

• San Miguel del Monte: Another nearby option where rural tourism is combined with basic astronomical observations. Several local providers organize themed activities.

Where to do astrotourism in Mendoza

Mendoza offers clear skies and excellent astronomical infrastructure, making it ideal for astrotourism activities.

• Malargüe Planetarium Complex: Located in the southern part of the province, this complex features a modern planetarium and the Pierre Auger Cosmic Ray Observatory, offering interactive projections and educational activities for all ages.

• Tupungato: In the Uco Valley, several private initiatives offer stargazing experiences surrounded by vineyards and mountains—blending nature and starry skies.

• El Sosneado: This town in the San Rafael department is known for its crystal-clear skies and low light pollution, making it a perfect spot for star observation.

Where to do astrotourism in La Rioja

La Rioja, with its clear skies and unique landscapes, is positioning itself as an emerging destination for astrotourism.

• Pampa de las Salinas: This white desert offers a unique stargazing experience, where the contrast between the salt flats and the starry sky creates an unforgettable spectacle.

• Talampaya National Park: While better known for its geological formations, this park also offers dark skies perfect for stargazing, especially on clear nights.

Where to do astrotourism in San Luis

San Luis stands out for its clear skies and a wide range of astronomy-related activities for all audiences.

• La Punta Astronomical Park (PALP): Located near the provincial capital, this park includes a planetarium, the Solar de las Miradas, and the Buenaventura Suárez Observatory, providing both educational and observational experiences for all ages.

• Villa de Merlo: Known for its unique microclimate, Merlo offers astrotourism activities such as telescope observations, night hikes, and astronomy workshops—taking advantage of its clear skies and low light pollution.

• Salinas del Bebedero: This salt flat near the city of San Luis is an ideal location for astronomical observation, with organized events that combine science and nature in a one-of-a-kind setting.

Practical Tips for Astrotourism in Argentina

• Check the astronomical calendar before planning your trip: lunar phases, meteor showers, and eclipses are special events to enjoy outdoors.

• Bring warm clothing—even in summer. Nighttime temperatures can drop significantly.

• A red-light flashlight will allow you to move around without affecting your eyes’ adjustment to the dark.

• Check whether your chosen destination offers telescopes, expert guides, or group activities, as well as experiences like stargazing dinners and overnight stays under the stars.



To discover more astronomical tourism experiences across the country, visit Argentina’s official Astrotourism portal and find updated offers on each official site. The Argentine sky is open. All that’s missing is you. Come and see it.