This newest addition to the Pamphlet Architecture series, long admired for its willingness to propose architectural solutions to challenging problems addresses the issue of rising sea levels with an interrogation of the concept of floating cities, a field of inquiry gaining increasing relevance and urgency with the impending reality of climate change. The authors explore notions of buoyancy and the amphibious through a typology based on human response and adaptation, to one of the hosting pressing issues of our day.