Definitions for "Perils of the Sea"
All perils which are unique to transportation and which could not be prevented by reasonable efforts, including sinking of the vessel, stranding, heavy weather, lightning, collision with other vessels or submerged objects (such as Titanic's iceberg), and damage by sea water when caused by an insured peril. [MORE ON MARINE CARGO INSURANCE
Accidents and casualties that only happen at sea, such as sinking, collision of vessels, striking a submerged object, or heavy weather.
Dangers specific to ocean marine transportation, such as heavy weather, stranding and collision. Perils of the sea are distinguished from perils such as fire, which also may occur on land and would be considered "perils on the sea" rather than "perils of the sea."
Somewhat akin to open perils on land, the term refers to any potential cause of loss derived from shipment on a seagoing vessel.
Those causes of loss for which the carrier is not legally liable. The elemental risks of ocean transport.