This paper examines the hard-core ecotourist element that emerged from a sample of 1180 ecolodge patrons collected in Lamington National Park, Australia, during late 1999. Identified in a Ward's method cluster analysis, the hard-core cluster numbered 88 individuals who displayed exceptionally high biocentric tendencies with respect to the core criteria of ecotourism and otherwise generally conformed to the traits associated with the hard ecotourist ideal type. However, with respect to a preference for interpretation and other services, and in terms of the perceived relationship between ecotourism and mass tourism, their responses were more ambivalent and merit further investigation.