A shrouded turbine blade including a blade body having an operationally upstream face, an operationally downstream face, a root end and a tip end and a shroud segment provided at the tip end, the blade having an inlet in the root end and a cooling passage passing from the inlet to the tip end, the shroud segment comprising an arcuate platform and a seal fin arranged towards an operationally upstream end of the shroud platform and extending away from the blade body and circumferentially across the shroud platform, a fin cooling passage in fluid communication with the tip end of the blade cooling passage, the fin cooling passage having at least one outlet on an operationally downstream facing side of the fin, and a flow discourager arranged towards an operationally downstream end of the shroud platform.