Understanding Environmentally Significant Behavior in the Garhwal Himalaya, India: An Exploratory Study of Whitewater and Trekking Introduction The region of Garhwal, Uttarakhand, India is revered for its cultural affluence and scenic wonder. It has been cited as having vast potential for tourism growth. Nature-based tourism, including eco, adventure, and religious tourism, has been cited as one type of tourism that could flourish within the state and has been growing steadily in the state for decades (Bisht, 2008). However, increased nature-based tourism has resulted in environmental impacts that have drawn the attention of domestic scholars calling for outdoor ethics and environmental education. Implicit disseminators of such ethics and education, nature-based guides were found to be valuable at minimizing recreation impacts (Roggenbuck, Williams, & Bobinski, 1992). So far, research has not detailed Garhwal-based guides’ perception of their responsibility towards minimizing tourism impacts. The Significance of Guides Guides trained in minimal impact skills can play an important role in minimizing environmentally destructive behavior displayed by their clients (Barker & Roberts, 2004; Littlefair & Buckley, 2008; Wagstaff & Wilson, 1988). Several ecotourism studies have focused on the natural resource management role of eco guides (e.g., Black et al., 2001; Haig & McIntyre, 2002; Ormsby & Mannle, 2006; Peake, Innes, & Dyer, 2009). Currently, there is limited research on this topic in a context outside of ecotourism and particularly in so-called developing countries where the majority of the clientele is indigenous (as in the case of Garhwal, India). To address this limitation, it is important to understand why guides perform environmentally significant individual behavior (positive and negative). The aim of this study was to examine the cognitive factors that lead Garhwal-based whitewater and trekking guides’ intention to pack out trash, bury human waste, and cut living trees for firewood (rather than use alternatives) during the expeditions they work. The Theory of Planned Behavior (TOPB) was used to help identify those cognitive constructs that have been shown empirically to predict and explain environmentally significant behavior. Methods The study was conducted in the Joshimath, Rishikesh, and Uttarkashi, India in June, 2009. Questionnaires were administered to 68 whitewater and trekking guides who volunteered to participate. Guides completed the first part of a 45-question questionnaire that was constructed following Ajzen’s (2006) Constructing a TPB Questionnaire and incorporated a 5-point semantic differential scale. The questionnaire measured behavioral intention, attitude, subjective norm, perceived behavioral control, and past behavior pertaining to packing out trash, burying human waste, and cutting living trees for firewood. Four-step hierarchical regression analysis was done separately on each of the three dependent variables (behavioral intentions) to examine those independent variables (theoretical antecedents) that make the most unique contributions to TOPB in this context. Attitudes (step 1), subjective norms (step 2), perceived behavioral control (step 3), and past behavior (step 4) were added to the regression equation to examine their contributions to the prediction of intention. Results The findings of this study suggest that the basic constructs of the Theory of Planned Behavior explained behavioral intentions to perform proenvironmental behavior among nature-based guides in Garhwal, India. A meta-analysis by Armitage and Conner (2001) found that the average variance of intentions explained by the three TOPB constructs was 39%. Two of three models tested in this study performed well above and slightly below this average. The theory’s predictive capabilities waned regarding intention to bury human waste, however. We posit that certain behaviors considered as proenvironmental may be under established in Garhwal and a viewed as low priority as resources and incentives to perform such behavior are limited (Teo & Loosemore, 2001). Further, the unique social and cultural context, such as religion and the (outlawed) caste system in India, may have influenced guides’ decisions to execute proenvironmental behavior. Attitude alone was a strong predictor of intention to perform all three behaviors, suggesting that the more positive participants attitude, the greater their intentions to engage in low impact outdoor behaviors. However, the extent of influence of a theoretical antecedent was dependent on the behavior in question. As other theoretical antecedents were added to the model, the contribution of attitude to the model dissipated and the influence of other predictors increased. Conclusions The instillation and enforcement of a proenvironmental industry norm or performance standard, increased managerial and colleague commitment and support, increased expertise on the benefits of proenvironmental behavior in the wilds of Garhwal, and increased availability of materials (e.g. a shovel) to perform such behaviors appears to be essential to build upon guides’ positive attitudes toward proenvironmental behavior. This research suggests that the implementation of any standard and related training in Garhwal should be tailored to how whitewater and trekking guides cognitively and culturally approach the performance of environmentally significant behaviors. Garhwal-based guides have an opportunity to partake in a community-based resource management endeavor, where guides are “working with what they have, with what they know, and what they can do” (Nietschmann, 1997, p. 223) to achieve an outdoor ethic they agree is representative of their vision and culture. Land managers, such as the Uttarakhand Forest Department, could benefit from a partnership with guides who practice pro environmental behavior.