Voz que Clama - Tuis. Christian ministry describes their food, education, and assisted housing programs, with information on how to participate. - http://vqcmission.com/
Edunamica Foundation - Tres Rios. Education orientated and humanitarian initiatives and projects for children and youth. Includes a description of current projects and news. - http://www.edunamica.org/
Costa Rica Rios - Whitewater rafting, mountain biking and hiking throughout the region, with bed and breakfast based in Turrialba. Includes company history, experience of the guides, sample itineraries, and equipment information. - http://www.costaricarios.com/