Locus of Control (LOC) is measured by a brief survey designed to determine an 'internal' or 'external' locus. Internal LOC signifies ownership of the consequences of one's actions. Individuals with a more internal LOC tend to have higher determents of positive mental health. This study investigated the impact on the LOC of university students after a 25-day program focused on adventure-based eco-tourism where the participants hiked, camped, white water rafted and took part in other adventure-based activities. We found the results further support previous studies that determined adventure programs enhanced internality measured quantitatively through Locus of Control. Qualitative responses indicated greater self-reliance due to enhanced belief in ability.