Deep in the Sundarbans, life is governed by the flow and ebb of the tides. The river delta region that spans across India and Bangladesh is famous for its vast mangrove forests that are threatened by rising sea levels and increasing temperatures. For the past seven years, photographer Swastik Pal has been captivated by the people who call this fragile ecosystem home. His ongoing project Tide Country documents this changing landscape and its impact on their way of life.