This summary provides an overview of the IPCA Establishment Productive Retreat, held in 2019 and hosted on Tla-o-qui-aht Territory. The purpose of this retreat was to bring together Indigenous Nations who are in the early phases of establishing IPCAs, as well as allies who support this work. The summary includes an overview of the proceedings and a discussion of key themes and insights that emerged, organized according to the Four Moose established in the ICE Report. This report is extremely useful, particularly for stakeholders in the early stages of the IPCA process, as it can provide essential guidance and context, as well as a list of participants who themselves can be helpful allies and supporters of the work.