Earth and nature-based spirituality is proliferating globally. In Part I of this study, I argue that although participants in countercultural movements often eschew the label religion, these are religious movements, in which these persons find ultimate meaning and transformative power in nature. Focusing on the deep ecology movement, I further argue that (1) experiences of nature spirituality are evoked by practices as diverse as mountaineering, neo-shamanic ritualising and states of consciousness induced by hallucinogens; (2) earthen spiritualities are often contested and may be viewed as inauthentic or dangerous by practitioners of other forms of nature spirituality; and (3) despite significant diversity, a sense of connection and belonging to nature (sometimes personified as a transforming, if not transcendent power) unites these cross-fertilising and sometimes competing spiritualities. Part II examines additional forms of nature-oriented religion, searching further for continuities, discontinuities and ironies among its diverse forms.