About Us

Founded in 1994, Andean Summits is a family-owned pioneer in adventure tourism in Bolivia and the Andes. Reconized for openning routes and developing original itineraries. As the first Bolivian traveling agency to develop a website in 1999 built it's reputation offering high-quality taylor-made experiences for international travellers. Specialized in inbound adventure travel across Bolivia, Perú, Chile and Argentina is now led by a second generation of certified guides.


Oscar Javier Thellaeche Urdininea

Professional Summary

For decades, Javier has been shaping mountain and adventure experiences. Trained by the German Alpine Club (DAV) in 1984 later become a certified mountain guide instructor and leaded expeditions across the Andes in Bolivia, Chile, Peru, Argentina, across the Himalayas in Nepal and New Zeland. In 2005, he become a certified guide member of the International Mountain Guides Association (IMGA, UIAGM, IVBV). Fluent in Spanish, English, and Italian, he is also a designer of challenge courses and adventure parks like Zipline Bolivia, Urban Rush Bolivia, and Villa Alcira.


Javier Thellaeche Ortiz

Professional Summary

Trekking guide specialized in high-altitude mountain treks and Andean valley hikes. Four years of hands-on experience guiding world travelers through landscapes of Bolivia and Guatemala. Certified guide of the Asociación de Guías de Montaña y Trekking de Bolivia and instructor of the Escuela de Guías EGIM – AGMTB. Partner of Andean Summits, a 30 years old adventure tourism company. Food Security NGO developer with Fundación Alternativas and Veterinarian.

Adventure awaits, together!



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