Walk through a scaled solar system model and end your evening with expert-led stargazing in Tajo Internacional. Aventurex’s Astroturismo offers a rare blend of nature, education, and celestial wonder in Extremadura’s dark sky sanctuary.
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Difficulty
easy
Duration
3 hours
Fitness Level
Suitable for most fitness levels including children age 4 and up; involves light walking on natural terrain.
Wildlife
History
Tajo Internacional Natural Park was designated in 2002, preserving one of the Iberian Peninsula’s most intact border landscapes with deep cultural traditions tied to livestock farming.
Conservation
Aventurex supports sustainable tourism practices, emphasizing leave-no-trace principles to protect the park’s sensitive dark sky and fragile habitats.
Aventurex
Walk through a scaled solar system model and end your evening with expert-led stargazing in Tajo Internacional. Aventurex’s Astroturismo offers a rare blend of nature, education, and celestial wonder in Extremadura’s dark sky sanctuary.
Aventurex is an outdoor activity operator based in San Vicente de Alcántara, Extremadura. The company offers guided adventures throughout the Tajo Internacional Natural Park and nearby areas, including Valencia de Alcántara, Alcántara and Marvão. Aventurex's program includes Vía Ferrata, Ruta del contrabando (day and night options), astroturismo stargazing workshops, Escape outdoor team challenges, megalitismo walks and treasure hunts, orientation and geocaching, kayaking routes on the Tajo River, Archery Tag, and climbing and rappelling sessions.
Activities are conducted with local guides familiar with regional trails, history and wildlife. Trip formats range from family-friendly half-day outings to full-day expeditions such as kayaking from Herrera de Alcántara to Cedillo, with picnic stops at Las Parreras. The Ruta del contrabando features guided storytelling and character actors for nighttime editions; astroturismo includes telescopes and a scaled solar system model to contextualize stargazing sessions.
Aventurex emphasizes immersive learning, physical activity and respect for natural and cultural heritage. Experiences are designed to build teamwork, observation skills and outdoor confidence. Most trips are suitable for beginners while remaining challenging for experienced participants; programs can be adapted for corporate events, families or educational groups.
Booking information, meeting points and equipment requirements are provided at reservation so participants arrive prepared. From guided kayak journeys and birdwatching along the Tajo to climbing, rappelling and historical walks, Aventurex connects visitors to Extremadura through varied, guided outdoor experiences that combine nature, history and astronomy. Customers receive detailed pre-trip instructions, suggested clothing lists, and local contact information to aid safe, informed participation and logistics.
Base Location
San Vicente de Alcántara
Gateway to Tajo Internacional
Tours Offered
11 experiences
Diverse outdoor adventures
Astroturismo
Stargazing workshops
Telescopes and expert guides
Navigation
Geocaching & orientation
Map, compass and GPS challenges
Reserve a guided Vía Ferrata, kayak route, astroturismo night or team Escape outdoor challenge from San Vicente de Alcántara today.
Wear Comfortable Walking Shoes
The trail through the solar system scale is an easy walk but involves uneven natural terrain; sturdy shoes will keep you comfortable.
Bring Warm Layers After Sunset
Even in summer, nighttime temperatures can drop significantly in Tajo Internacional’s open spaces; dress in layers to stay warm during stargazing.
Avoid Using Flashlights or Phones
To preserve night vision and minimize light pollution, avoid bright lights during the astronomy session unless absolutely necessary.
Carry a Water Bottle
Although the walk is moderate, hydration is important especially during warmer months; bring water to stay refreshed.
Layered Clothing
Keeps you comfortable through temperature changes from daylight to night.
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Sturdy Walking Shoes
Necessary for navigating the natural uneven trail safely.
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Headlamp with Red Light Mode
Useful for navigating before and after stargazing without disturbing night vision.
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Water Bottle
Stay hydrated during the walk and evening under the stars.
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