Although the ecotourism literature is growing rapidly, few researchers have systematically examined how ecotourists select and evaluate lodging alternatives. Understanding lodging attributes of importance to ecotourists is the first step in modelling lodge selection and satisfaction processes of interest to both managers and researchers. We report on the results of two studies designed to gather such attributes. Study 1 uses e-mail survey responses from dedicated birders, while Study 2 uses data from on-site interviews with visitors at ecolodges in Mexico, Costa Rica, and Ecuador. The two most-commonly mentioned attributes in both studies were “proximity to natural areas” and “cost.” These and numerous other attributes are described. We close by discussing implications of our findings and offering suggestions for future research.