The term 'Fit to Sail' is a phrase used to describe a vessel that is seaworthy and ready to embark on a voyage. Seaworthiness is the condition of a vessel being structurally sound, properly equipped, and in good condition for navigation. This includes having all necessary safety equipment, such as lifeboats, fire extinguishers, and life jackets. Additionally, the vessel must be able to withstand the rigors of the sea, including strong winds, waves, and storms. In order to be considered fit to sail, the vessel must also have a competent crew and captain who are knowledgeable about the vessel and its capabilities.