This article explores how a third space could be constructed in an outdoor setting. It uses at-sea sail-training to substantiate the construction of a third space. It uses Yin-Yang philosophy to enrich existing theories of third space and experiential learning. The finding reveals that the thirdness of the oceanic space has a positive impact on self-other understanding in intercultural contexts. It concludes by presenting a three-dimensional Yin-Yang third space of ocean experiences upon tall ships and suggests nine elements in intercultural programmes should be reflected upon as a basis for creating a learning space of interculturality.