Hersilia Cove is the 650 m wide cove indenting for 800 m the north coast of Rugged Island in the South Shetland Islands, Antarctica west of Herring Point. It was the starting point of Antarctic sealing south of 60° south latitude, when the ship Espirito Santo with English crew under Captain Joseph Herring and chartered in Buenos Aires arrived to the cove on Christmas Day of 1819.