Gardens & Grottoes speculates on messy entanglements between more-than-human agencies within the topos of the grotto, both as an architectural garden feature and vital subterranean ecosystem. By examining the aestheticization of plants, animals, rocks, soils, water and air through art and landscape architecture, this thesis argues for a refiguring of personhood beyond boundaries and into a more porous, interconnected conception of self. In our time of significant anthropogenic impact, where humans are often pictured as dominant, yet separate from ecologies, this investigation proposes an immersed and enmeshed conception of humanity. The artistic exploration diffractively reads through notions of biophilia, bodies and becoming within cavernous garden aesthetics in order to challenge human exceptionality and consider expanded subjectivities. Through movement, multi-sensory engagement and representational blurring of bodies, the exhibition invites intimate encounters and collaboration with the beings present.