Although a growing number of studies emphasize the benefits of interaction with nature (Montreal Heart Institute, 2021), few studies specifically address the role of marine environments in nature and adventure based practices. However, so-called “blue environments” have their own characteristics and are recognized for their beneficial effects on physiological and psychological health (White et al., 2020). There are various programs around the world that, through a stay at sea on a sailboat, aim to support individuals and groups experiencing various difficulties (Schijf et al., 2017). Intervention practices that rely on sailing thus offer a singular opportunity for immersion in a marine environment. This article presents research findings and reflections on this phenomenon, which has been little studied to date from a social work perspective. The article is based on the preliminary results of a master’s thesis in social work being carried out at the Université du Québec à Rimouski which aims, through a phenomenological approach, to better understand the experience lived by the interveners and participants during a sailing expedition on the St. Lawrence River in a social intervention context.