these contacts are provided as courtesy only, and visitors who intend to use these services should check for safety records and certifications of individual guides. 

trilhas rj specializes in hiking and spelunking tours, and can be contacted via this online form, or by calling (21) 3437-1056.

crux ecoaventuras offers guided tours in several of the caves of the tijuca forest, and can be contacted via this page, via email on this link, or via phone by calling 21 3322.8765 / 3474.1726. 

cs tur  is one of the companies in rio de janeiro specializing in eco-tourism in rio's caves, publishing more information on the circuito das grutas (complexo espeleológico do archer) and contact forms on this page.