Sea legs refers to a person's ability to adjust and maintain balance while on a ship at sea. It takes time for the human body to adapt to the constant swaying and rocking motion of a ship on the water. Initially, people who are not used to being at sea may struggle to maintain their balance and may experience feelings of dizziness or nausea. However, as they spend more time on the ship, their body begins to adjust and they develop "sea legs," which allows them to move around more easily without losing their balance.
