The "Delos Initiative" focuses on the sacred natural sites in developed countries throughout the world (such as Australia, Canada, the European countries, Japan, New Zealand and the United States of America). Its main purpose is to help in maintaining both the sanctity and the biodiversity of these sites, through the understanding of the complex relationship between spiritual/cultural and natural values. This publication includes all the presentations made at the First Workshop of the Delos Initiative, which took place in Montserrat in 2006. All speeches delivered and case studies presented at the workshop have been included, as well as conclusions and lessons learned.