Etude Atlantis is an artwork by John Roloff imagined as a visual instrument for the social and philosophical exercise of finding Atlantis. This project is inspired by a complex matrix of sources including: the work of the musician John Cage, the architect Arthur Erickson, the mathematician Ivars Peterson, the global position of Atlantic City, oceanography, renaissance church floor design and camouflage ship painting, among others. The antipode of Atlantic City, or direct line through the center of the earth, emerges from the sea floor off the SW coast of Australia, near the underwater Naturaliste Plateau, considered by some to be a southern Atlantis. Etude Atlantis presents to the participant a stage-like environment where participants may traverse and explore a gigantic graphic of illusionistic decent and a complimentary central cistern of shifting light patterns. These visual elements can be imagined as a theatrical playground and puzzle-space to consider mythic quests, cognition and geopolitical relationships.