Levelling Network is a project which looks at the Kronstadt Tide Gauge, the site from which all depths and altitudes in Russia are measured, as one of the most comprehensive collections of sea-level data in the world. Meticulous and absurd processes are designed and rituals carried out in order to analyze the traditional and evolving methods used for measuring sea level in Russia. It is used as a reference point to understand my surrounding landscape, to measure my relationship to it, and to investigate the history of Kotlin island.