Port is left. Starboard is right.
A naval term meaning 'the sea is clear on the port side' (left)
port side is the left side at sea
A voyage is another term for long sea journey.
The geographic term for the land bordering the sea is coastline.
Skullduggery sea is in the bottom left on the map
there are about 10,000-12,000 Australian sea lions left in the wild.
If by "left" you mean West, then the answer is the Caribbean Sea
Elevation is the term for how high something is above sea level.
a sea rat is a slang term for a pirate
sea dogs
oceanic, pelagic,
tacks